Add suggestion text for resource group and Container App unmarshal errors during azd deploy

cli/azd/pkg/containerapps/container_app.go

@@ -11,13 +11,15 @@ import (
 	"log"
 	"net/http"
 	"slices"
+	"strings"
 
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/arm"
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/policy"
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/runtime"
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/streaming"
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/to"
 	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/appcontainers/armappcontainers/v3"
+	"github.com/azure/azure-dev/cli/azd/internal"
 	"github.com/azure/azure-dev/cli/azd/pkg/account"
 	"github.com/azure/azure-dev/cli/azd/pkg/alpha"
 	"github.com/azure/azure-dev/cli/azd/pkg/config"
@@ -458,7 +460,11 @@ func (cas *containerAppService) getContainerApp(
 
 	_, err = appClient.Get(ctx, resourceGroupName, appName, nil)
 	if err != nil {
-		return nil, fmt.Errorf("getting container app: %w", err)
+		err = fmt.Errorf("getting container app: %w", err)
+		if strings.Contains(err.Error(), "unmarshalling type") {
+			err = withApiVersionSuggestion(err)
+		}
+		return nil, err
 	}
 
 	var containAppMap map[string]any
@@ -499,7 +505,7 @@ func (cas *containerAppService) updateContainerApp(
 	var containerAppResource armappcontainers.ContainerApp
 	if apiVersionPolicy == nil {
 		if err := json.Unmarshal(containerAppJson, &containerAppResource); err != nil {
-			return fmt.Errorf("failed to unmarshal container app: %w", err)
+			return withApiVersionSuggestion(fmt.Errorf("failed to unmarshal container app: %w", err))
 		}
 	}
 
@@ -603,3 +609,16 @@ func createApiVersionPolicy(options *ContainerAppOptions) *containerAppCustomApi
 		apiVersion: options.ApiVersion,
 	}
 }
+
+func withApiVersionSuggestion(err error) error {
+	suggestion := "Suggestion: set 'apiVersion' on your service in azure.yaml to match the API version " +
+		"in your IaC:\n\n" +
+		"services:\n" +
+		"  your-service:\n" +
+		"    apiVersion: 2025-02-02-preview"
+
+	return &internal.ErrorWithSuggestion{
+		Err:        err,
+		Suggestion: suggestion,
+	}
+}

cli/azd/pkg/infra/azure_resource_manager.go

@@ -15,6 +15,7 @@ import (
 
 	"github.com/Azure/azure-sdk-for-go/sdk/azcore/arm"
 	"github.com/Azure/azure-sdk-for-go/sdk/resourcemanager/resources/armresources"
+	"github.com/azure/azure-dev/cli/azd/internal"
 	"github.com/azure/azure-dev/cli/azd/pkg/azapi"
 	"github.com/azure/azure-dev/cli/azd/pkg/azure"
 	"github.com/azure/azure-dev/cli/azd/pkg/azureutil"
@@ -182,20 +183,27 @@ func (rm *AzureResourceManager) FindResourceGroupForEnvironment(
 		return rgs[0].Name, nil
 	}
 
-	var msg string
-
+	var findErr error
 	if len(rgs) > 1 {
 		// We found more than one RG
-		msg = "more than one possible resource group was found."
+		findErr = errors.New("more than one possible resource group was found")
 	} else {
 		// We didn't find any RGs
-		msg = "unable to find the environment resource group."
+		findErr = errors.New("unable to find the environment resource group")
 	}
 
-	return "", fmt.Errorf(
-		"%s explicitly specify your resource group in azure.yaml or the AZURE_RESOURCE_GROUP environment variable",
-		msg,
-	)
+	suggestion := "Suggestion: explicitly set the AZURE_RESOURCE_GROUP environment variable or specify " +
+		"your resource group in azure.yaml:\n\n" +
+		"resourceGroup: your-resource-group\n" +
+		"# or for a specific service\n" +
+		"services:\n" +
+		"  your-service:\n" +
+		"    resourceGroup: your-resource-group"
+
+	return "", &internal.ErrorWithSuggestion{
+		Err:        findErr,
+		Suggestion: suggestion,
+	}
 }
 
 func (rm *AzureResourceManager) GetResourceTypeDisplayName(