Error during compile using .NET Core SDK 2.1.100

[jincod]

Broken branch https://github.com/jincod/dotnetcore-buildpack/commits/develop

.heroku/dotnet/sdk/2.1.101/Roslyn/Microsoft.CSharp.Core.targets(84,5): 
error MSB3883: Unexpected exception:
System.AggregateException: One or more errors occurred. (The system cannot open the device or file specified. [src/Models/Models.csproj]
) ---> System.IO.IOException: The system cannot open the device or file specified. [src/Models/Models.csproj]
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) [src/Models/Models.csproj]
at System.Threading.Mutex.MutexTryCodeHelper.MutexTryCode(Object userData) [src/Models/Models.csproj]
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) [src/Models/Models.csproj]
at System.Threading.Mutex.CreateMutexWithGuaranteedCleanup(Boolean initiallyOwned, String name, Boolean& createdNew, SECURITY_ATTRIBUTES secAttrs) [src/Models/Models.csproj]
at Microsoft.CodeAnalysis.CommandLine.BuildServerConnection.<RunServerCompilationCore>d__7.MoveNext() [src/Models/Models.csproj]
--- End of inner exception stack trace --- [src/Models/Models.csproj]
at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions) [src/Models/Models.csproj]
at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken) [src/Models/Models.csproj]
at System.Threading.Tasks.Task.Wait(CancellationToken cancellationToken) [src/Models/Models.csproj]
at Microsoft.CodeAnalysis.BuildTasks.ManagedCompiler.ExecuteTool(String pathToTool, String responseFileCommands, String commandLineCommands) [src/Models/Models.csproj]
---> (Inner Exception #0) System.IO.IOException: The system cannot open the device or file specified. [src/Models/Models.csproj]
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath) [src/Models/Models.csproj]
at System.Threading.Mutex.MutexTryCodeHelper.MutexTryCode(Object userData) [src/Models/Models.csproj]
at System.Runtime.CompilerServices.RuntimeHelpers.ExecuteCodeWithGuaranteedCleanup(TryCode code, CleanupCode backoutCode, Object userData) [src/Models/Models.csproj]
at System.Threading.Mutex.CreateMutexWithGuaranteedCleanup(Boolean initiallyOwned, String name, Boolean& createdNew, SECURITY_ATTRIBUTES secAttrs) [src/Models/Models.csproj]
at Microsoft.CodeAnalysis.CommandLine.BuildServerConnection.<RunServerCompilationCore>d__7.MoveNext()<--- [src/Models/Models.csproj]

Similar issue: dotnet/roslyn#24124

[ilijaivanov]

It can be fixed by adding "chmod 777 /tmp"
That's how I fixed it in my buildpack, anyway, I'll submit a pull request :) (I wanted to make a pure .NET Core buildpack, no ASP.NET, but while making it I realized they're not that different, and the only changes were maybe a bit of arguments and that it looks for Program.cs rather than Startup.cs)

[jincod]

Thank you!

It can be fixed by adding "chmod 777 /tmp"

Could you please provide more info about this issue?

maybe a bit of arguments and that it looks for Program.cs rather than Startup.cs

I believe that this PR can help #28

[ilijaivanov]

I submitted a PR.