All in a sudden Functions compilation in Visual Studio fails with exception

[ChristianWeyer]

Hi all,

Did anybody ever see this?

I have a .NET 4.6.1 project. Everything worked fine - util a certain point.
From one moment to the other I get this exception:

2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): warning :
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : System.IO.FileNotFoundException: Could not load file or assembly 'Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed' or one of its dependencies. The system cannot find the file specified.
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : File name: 'Newtonsoft.Json, Version=6.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed'
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :    at System.Signature.GetSignature(Void* pCorSig, Int32 cCorSig, RuntimeFieldHandleInternal fieldHandle, IRuntimeMethodInfo methodHandle, RuntimeType declaringType)
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :    at System.Reflection.RuntimeMethodInfo.FetchNonReturnParameters()
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :    at System.Reflection.RuntimeMethodInfo.GetParameters()
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :    at MakeFunctionJson.MethodInfoExtensions.GetDisabled(MethodInfo method)
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :    at MakeFunctionJson.MethodInfoExtensions.HasUnsuportedAttributes(MethodInfo method, String& error)
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :    at MakeFunctionJson.FunctionJsonConverter.TryGenerateFunctionJsons()
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :    at MakeFunctionJson.FunctionJsonConverter.TryRun()
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : 
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : WRN: Assembly binding logging is turned OFF.
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : Note: There is some performance penalty associated with assembly bind failure logging.
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : 
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : Error generating functions metadata
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error :
2>C:\Users\Christian Weyer\.nuget\packages\microsoft.net.sdk.functions\1.0.6\build\netstandard1.0\Microsoft.NET.Sdk.Functions.Build.targets(32,5): error : Metadata generation failed.
2>Done building project "HomeAutomation-Functions.csproj" -- FAILED.

I restarted VS, no help.
Any idea?

Thanks!

[tohling]

Could you add an explicit reference for Newtonsoft version 9.0.1 and see if the error goes away?

[ChristianWeyer]

Thanks for this idea. Yep, tried that. Same result.

After further investigating, I found my issue is similar to this one:
Azure/azure-functions-vs-build-sdk#115
dotnet/sdk#1405

[ahmelsayed]

This issue was moved to Azure/azure-functions-vs-build-sdk#139