diff --git a/WrapGod.Abstractions/WrapGod.Abstractions.csproj b/WrapGod.Abstractions/WrapGod.Abstractions.csproj
index cc74fea..1ca99b3 100644
--- a/WrapGod.Abstractions/WrapGod.Abstractions.csproj
+++ b/WrapGod.Abstractions/WrapGod.Abstractions.csproj
@@ -5,7 +5,7 @@
-
+
diff --git a/WrapGod.Cli/WrapGod.Cli.csproj b/WrapGod.Cli/WrapGod.Cli.csproj
index 079488e..46ceb99 100644
--- a/WrapGod.Cli/WrapGod.Cli.csproj
+++ b/WrapGod.Cli/WrapGod.Cli.csproj
@@ -12,7 +12,7 @@
-
+
diff --git a/WrapGod.Extractor/NuGetPackageResolver.cs b/WrapGod.Extractor/NuGetPackageResolver.cs
index 0f925a3..21263e4 100644
--- a/WrapGod.Extractor/NuGetPackageResolver.cs
+++ b/WrapGod.Extractor/NuGetPackageResolver.cs
@@ -98,6 +98,11 @@ private static async Task DownloadAndExtractAsync(
var cache = new SourceCacheContext();
var repository = Repository.Factory.GetCoreV3(sourceFeed);
var resource = await repository.GetResourceAsync(cancellationToken);
+ if (resource is null)
+ {
+ throw new InvalidOperationException(
+ $"Failed to obtain a package resource from feed '{sourceFeed}'.");
+ }
var nugetVersion = new NuGetVersion(version);
diff --git a/WrapGod.Extractor/WrapGod.Extractor.csproj b/WrapGod.Extractor/WrapGod.Extractor.csproj
index 686ccba..1fa2d34 100644
--- a/WrapGod.Extractor/WrapGod.Extractor.csproj
+++ b/WrapGod.Extractor/WrapGod.Extractor.csproj
@@ -2,9 +2,9 @@
-
-
-
+
+
+
diff --git a/WrapGod.Generator/WrapGod.Generator.csproj b/WrapGod.Generator/WrapGod.Generator.csproj
index 52866dc..952b430 100644
--- a/WrapGod.Generator/WrapGod.Generator.csproj
+++ b/WrapGod.Generator/WrapGod.Generator.csproj
@@ -8,7 +8,7 @@
-
+
diff --git a/WrapGod.Manifest/WrapGod.Manifest.csproj b/WrapGod.Manifest/WrapGod.Manifest.csproj
index 9ffe0b4..562709f 100644
--- a/WrapGod.Manifest/WrapGod.Manifest.csproj
+++ b/WrapGod.Manifest/WrapGod.Manifest.csproj
@@ -10,7 +10,7 @@
-
+
diff --git a/WrapGod.Migration.Engine/WrapGod.Migration.Engine.csproj b/WrapGod.Migration.Engine/WrapGod.Migration.Engine.csproj
index 527767d..617a5e1 100644
--- a/WrapGod.Migration.Engine/WrapGod.Migration.Engine.csproj
+++ b/WrapGod.Migration.Engine/WrapGod.Migration.Engine.csproj
@@ -6,7 +6,7 @@
-
+
diff --git a/WrapGod.Tests/WrapGod.Tests.csproj b/WrapGod.Tests/WrapGod.Tests.csproj
index 7182af0..e008fd3 100644
--- a/WrapGod.Tests/WrapGod.Tests.csproj
+++ b/WrapGod.Tests/WrapGod.Tests.csproj
@@ -16,11 +16,11 @@
-
-
-
+
+
+
-
+