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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(6.4, 31%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
Hello, I am receiving these suspisious waringns. Can someone help ?
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.InternalImplementationOnlyAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.DiagnosticAnalyzerAttributeAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.CompareSymbolsCorrectlyAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.ClassIsNotDiagnosticAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.DoNotUseCompilationGetSemanticModelAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.ConfigureGeneratedCodeAnalysisAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.EnableConcurrentExecutionAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.MetaAnalyzers.DiagnosticDescriptorCreationAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.Analyzers.FixAnalyzers.FixerWithFixAllAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerApiUsageAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpRegisterActionAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.CSharp.Analyzers.CSharpImmutableObjectMethodAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpReportDiagnosticAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.CSharp.Analyzers.MetaAnalyzers.CSharpDiagnosticAnalyzerFieldsAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
1>CSC : warning CS8032: An instance of analyzer Microsoft.CodeAnalysis.CSharp.Analyzers.CSharpUpgradeMSBuildWorkspaceAnalyzer cannot be created from C:\Users\Jerry\.nuget\packages\microsoft.codeanalysis.analyzers\3.0.0\analyzers\dotnet\cs\Microsoft.CodeAnalysis.CSharp.Analyzers.dll : Could not load file or assembly 'Microsoft.CodeAnalysis, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' or one of its dependencies. The system cannot find the file specified..
This Q&A service is really cute ....
There is missing
Microsoft.CodeAnalysis.Compilers
Microsoft.Net.Compilers
nuget packages
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(35.2, 14.000000000000002%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
I don't know why our build worked all this time and suddenly stopped working on our GitHub CI yesterday.
We didn't have either of these packages referenced. I added the first one. The second one has been replaced by Microsoft.Net.Compilers.Toolset,
so I also added it instead. Now it seems fine.
Thanks!
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 86%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDZ%3C/text%3E%3C/svg%3E)
Upgrading Visual Studio from 16.8 to 16.9 did the trick for me.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(220.8, 30%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJB%3C/text%3E%3C/svg%3E)
Yep, I saw the same thing when I came across this. Upgrading from 16.8 to 16.11 (the latest at time of writing) fixed this for me. I didn't need to add Microsoft.CodeAnalysis.Compilers or Microsoft.Net.Compilers/Microsoft.Net.Compilers.Toolset
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(262.40000000000003, 76%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJH%3C/text%3E%3C/svg%3E)
With .NET 6 Preview 7 this problem reappeared (even though visual studio on newest version).
Installing latest NuGet packages of
Microsoft.CodeAnalysis.Compilers
Microsoft.Net.Compilers
helped again. Thank you very much.
Ok, it compiled but visual studio 2019 only shows blank browser, I can manually add the localhost address where the blazor wasm is running and it works, but the debugger does not attach. Somehow my visual sutdio 2019 completely broke with installing .NET 6 Preview 7.
I jumped to visual studio 2022 Preview and this works like a charm (without the NuGet Packages mentioned from the last post).
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 69%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPV%3C/text%3E%3C/svg%3E)
in which project should I install these packages? It is not working on my end. I installed it in both Generator and Consuming Projects. still not working
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(44.800000000000004, 90%, 14%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHH%3C/text%3E%3C/svg%3E)
Like JamieBurns, I solved a similar problem with a Visual Studio upgrade from 16.8 to 16.11. As of 11/15/2021.