Blazor regression in 7.0.302 SDK

[ScarletKuro]

Is there an existing issue for this?

• I have searched the existing issues

Describe the bug

Hello,

After updating the SDK to version 7.0.302, we encountered numerous errors in our MudBlazor project. One particular example is the ambiguous call issue shown in the screenshot below. It appears that the Razor parser has become more strict, and the unnecessary @ symbol may be causing the problem. However, I'm unsure how to resolve all the errors, such as The attribute names could not be inferred from bind attribute 'bind-IsVisible' or Multiple components use the tag 'MudSwitch'. Could you provide some insight into their meaning?

While I don't have a reproduction repository available, you can review the logs at the following link for further details:
GitHub Logs

If you clone the MudBlazor repository and compile it with the 7.0.302 SDK version, you'll have a better understanding of the overall situation.

NB! creating global.json where you set previous SDK version does solve the problem, but this is not really a solution.

It would be greatly appreciated if you could provide any information or documentation regarding the changes and how to address them. Are there any workarounds available? I'm also curious why a breaking change was introduced in the .NET 7 SDK rather than do them in .NET 8.

Thank you for your assistance.

Exceptions (if any)

Error list example

Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,79): error CS1026: ) expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,79): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(970,32): error CS1002: ; expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(970,32): error CS1513: } expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,71): error CS1026: ) expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,71): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1145,32): error CS1002: ; expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1145,32): error CS1513: } expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(38,55): error CS1026: ) expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(38,55): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1366,39): error CS1002: ; expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1366,39): error CS1513: } expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(14,57): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(14,73): error CS1003: Syntax error, ',' expected [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.SourceCodeGenerator/MudBlazor.SourceCodeGenerator.FastEnumDescriptionGenerator/OverflowBehaviorMudEnumExtensions.g.cs'. Path does not exist
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.SourceCodeGenerator/MudBlazor.SourceCodeGenerator.FastEnumDescriptionGenerator/OverflowBehaviorMudEnumExtensions.g.cs(25,13): warning CS0618: 'OverflowBehavior.FilpOnOpen' is obsolete: 'This value has a typo and will be removed. Please use FlipOnOpen' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/Avatar/MudAvatar.razor(7,36): warning CS0618: 'MudAvatar.Image' is obsolete: 'Add a MudImage as the ChildContent instead' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/Avatar/MudAvatar.razor(9,29): warning CS0618: 'MudAvatar.Image' is obsolete: 'Add a MudImage as the ChildContent instead' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/Avatar/MudAvatar.razor(9,42): warning CS0618: 'MudAvatar.Alt' is obsolete: 'Add a MudImage as the ChildContent instead' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/PropertyColumn.cs(28,36): warning CS8618: Non-nullable field '_compiledPropertyFunc' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/PropertyColumn.cs(29,48): warning CS8618: Non-nullable field '_compiledPropertyFuncFor' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(91,150): warning CS8974: Converting method group 'ToggleAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(91,150): warning CS8974: Converting method group 'ToggleAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(95,63): warning CS8974: Converting method group 'HideAllColumnsAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(98,63): warning CS8974: Converting method group 'ShowAllColumnsAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(155,118): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(156,131): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(164,76): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,105): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(158,157): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(169,104): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(173,100): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(190,110): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(191,123): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(199,68): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,97): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(193,149): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(204,96): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(208,92): error CS0103: The name 'item' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(242,27): error CS0103: The name 'context' does not exist in the current context [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(39,58): error CS0029: Cannot implicitly convert type 'Microsoft.AspNetCore.Components.ElementReference' to 'MudBlazor.MudDropContainer<MudBlazor.Column<T>>' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
##[debug]Dropping file value '/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs'. Path does not exist
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Microsoft.NET.Sdk.Razor.SourceGenerators/Microsoft.NET.Sdk.Razor.SourceGenerators.RazorSourceGenerator/Components_DataGrid_MudDataGrid_razor.g.cs(1351,23): error CS1501: No overload for method 'AddAttribute' takes 4 arguments [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(272,123): warning CS8974: Converting method group 'StringValueChangedAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(277,127): warning CS8974: Converting method group 'NumberValueChangedAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(285,86): warning CS8974: Converting method group 'CancelEditingItemAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(286,86): error CS1503: Argument 2: cannot convert from 'method group' to 'string?' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(297,37): warning CS8974: Converting method group 'ShowColumnsPanel' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(300,45): warning CS8974: Converting method group 'ExpandAllGroups' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(301,45): warning CS8974: Converting method group 'CollapseAllGroups' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(305,45): warning CS8974: Converting method group 'InvokeServerLoadFunc' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(402,112): warning CS8974: Converting method group 'RemoveFilterAsync' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(405,95): warning CS8974: Converting method group 'FieldChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(425,95): warning CS8974: Converting method group 'StringValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(430,99): warning CS8974: Converting method group 'NumberValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(437,61): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(435,88): warning CS8974: Converting method group 'EnumValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(448,62): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(446,89): warning CS8974: Converting method group 'BoolValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(457,89): warning CS8974: Converting method group 'DateValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(460,89): warning CS8974: Converting method group 'TimeValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(466,95): warning CS8974: Converting method group 'StringValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(485,95): warning CS8974: Converting method group 'StringValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(490,99): warning CS8974: Converting method group 'NumberValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(497,61): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Warning: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(495,88): warning CS8974: Converting method group 'EnumValueChanged' to non-delegate type 'object'. Did you intend to invoke the method? [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]
Error: /home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/Components/DataGrid/MudDataGrid.razor(508,62): error CS0121: The call is ambiguous between the following methods or properties: 'RenderTreeBuilder.AddContent(int, string?)' and 'RenderTreeBuilder.AddContent(int, RenderFragment?)' [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor/MudBlazor.csproj::TargetFramework=net7.0] [/home/runner/work/MudBlazor/MudBlazor/src/MudBlazor.Docs/MudBlazor.Docs.csproj]

.NET Version

7.0.302

Anything else?

Post update 5/19/2023

Here are some solutions and workarounds for addressing certain errors and warnings:

1. Multiple components use the tag 'componentName' (RZ9985):
   See Blazor regression in 7.0.302 SDK #8718 (comment) for more information and avilable workaround.
2. The attribute names could not be inferred from bind attribute (RZ9991):
   See Blazor wasm: RZ9991 build error when updating from 7.0.203 to 7.0.302 sdk #8725 (comment) for possible workaround, another options it to try latest NET 8 preview SDK instead.
3. Found markup element with unexpected name 'componentName'. If this is intended to be a component, add a @using directive for its namespace (RZ10012):
   Try this workaround Blazor regression in 7.0.302 SDK #8718 (comment), another options it to try latest NET 8 preview SDK instead.
4. The type or namespace name '' could not be found in the global namespace (are you missing an assembly reference?) (CS0400):
   Try to specify full qualifier Blazor missing assembly reference with 7.0.302 #8729 (comment), another options it to try latest NET 8 preview SDK instead.
5. Cannot implicitly convert type 'Microsoft.AspNetCore.Components.ElementReference' to '[className]' (CS0029):
   No workaround available except trying the latest NET 8 preview sdk instead or downgrading the SDK to previous version.

Important Note: It is worth mentioning that Microsoft recommends work around the issues by pinning the 7.0.20xx SDK instead.

Downgrading SDK

One potential solution to address the issues caused by the new SDK version is to consider reverting to the previous SDK version: #8718 (comment).
It's important to note that if you are using containers, you should also ensure that the SDK version is changed accordingly. You may need to update the Dockerfile or related configuration files to specify the desired SDK version, as mentioned in this comment: #8718 (comment).
Additionally, don't forget to review other areas, such as GitHub workflows, or others CI/CD.

[sofiageo]

I have the same issue with .NET 8 preview 4 and my project.

[SpikeViper]

Having issues with 7.0.302 as well.
Getting
error CS0400: The type or namespace name 'InputComponent' could not be found in the global namespace (are you missing an assembly reference?)
But the imports are definitely there... and it works perfectly in previous versions. Not sure if related to this issue, but certainly related to the same version change.

[c4l3b]

I've experienced a handful of similar issues after installing 7.0.302 (including this one specifically)

For the could not be found in the global namespace issues, if I refactored the not-found, single file component to a component with a separate code-behind class, it fixed the issue. Bizarre.

[SpikeViper]

I've experienced a handful of similar issues after installing 7.0.302 (including this one specifically)

For the could not be found in the global namespace issues, if I refactored the not-found, single file component to a component with a separate code-behind class, it fixed the issue. Bizarre.

Thanks for that info. Are you by any chance using components with inheritance? I think that may be related.

[c4l3b]

Yes! The issue that I can't resolve right now involves an inherited component with a render fragment. The consumer cannot resolve context in the render fragment

[ScarletKuro]

The consumer cannot resolve context in the render fragment

I think we have this issue as well.

[c4l3b]

I was going down the rabbit hole of trying to fix it, but I think I'm going to lock the version to 7.0.202 in my global.json file and wait and see if Microsoft issues a fix. Sounds like some unintended breaking changes...

[SpikeViper]

Looks like the issue is related to passing 'this' in a blazor component to a subcomponent as well in my case... that's where I'm having this pop up.

I'm having it in places without inheritance as well, so there seems to be a few major issues here haha

[davidwengier]

fyi @dotnet/razor-compiler

[ScarletKuro]

We also digged the .g.cs files and found things like this

#line 158 "C:\Users\Riley\source\repos\MudBlazor\src\MudBlazor\Components\DataGrid\MudDataGrid.razor"
                                                                                        rowStyle

#line default
#line hidden
#nullable disable
            ) + "mud-table-row");
            __builder.OpenElement(125, "td");
            __builder.AddAttribute(126, "class", "mud-table-cell");
            __builder.AddAttribute(127, "colspan", "1000");
#nullable restore

notice the ( is flipped
Line 158:

<tr class="mud-table-row @rowClass" Style="@rowStyle" @key="item" @onclick="@((args) => OnRowClickedAsync(args, item, tmpRowIndex))">

---

#nullable disable
            __builder.OpenElement(171, "div");
            __builder.AddAttribute(172, "class", (
#nullable restore
#line 38 "C:\Users\Riley\source\repos\MudBlazor\src\MudBlazor\Components\DataGrid\MudDataGrid.razor"
                                           _tableClass

#line default
#line hidden
#nullable disable
#nullable restore
#line 38 "C:\Users\Riley\source\repos\MudBlazor\src\MudBlazor\Components\DataGrid\MudDataGrid.razor"
                                                                _tableStyle

#line default
#line hidden
#nullable disable
            ) + "mud-table-pagination");
#nullable restore

this one is missing a comma (Line 38 in source)