Access to the path appsettings.Debug.json is denied

[deastr]

My appsettings.json and appsettings.*.json files are under source control and are checked-in, so readonly. I'm getting this error when I try to build the project:

MSB4018	The "SlowCheetah.TransformTask" task failed unexpectedly.
System.UnauthorizedAccessException: Access to the path 'D:\MyProject\appsettings.Debug.json' is denied.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
   at Microsoft.VisualStudio.Jdt.JsonTransformation..ctor(String transformFile, IJsonTransformationLogger logger)
   at Microsoft.VisualStudio.SlowCheetah.JsonTransformer.Transform(String source, String transform, String destination)
   at Microsoft.VisualStudio.SlowCheetah.TransformTask.Execute()
   at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
   at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext()	Identity.Authentication.Web.UI	C:\Users\user\.nuget\packages\microsoft.visualstudio.slowcheetah\3.0.61\build\Microsoft.VisualStudio.SlowCheetah.targets	83	

Checking out the file get rids of the error but I rather not to do this every time I open the project. Is there a workaround?

[deastr]

Also same happens with Preview. Can't preview without checking the file out.

[Saniok88]

in general cases, files can also be locked, when they are very deep in folder structure, so the path length is longer, than 256 symbols.

[davilimap]

Seems to be microsoft/json-document-transforms#16. You can reopen the issue if it is not the problem.

[Damodark]

Hi,

I am getting similar issue.
I have latest of VS 2017 and latest of slowcheetah 3.1.66 installed. I am trying to use transformation for setting.json. Have created .Debug.json and .Release.json. When ever I build the project I get following error.

The "SlowCheetah.TransformTask" task failed unexpectedly.
System.UnauthorizedAccessException: Access to the path 'D:\Dev\TFS\dev\VS 2017\DevAgent\DevAgent.Program\Settings.Debug.json' is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
at Microsoft.VisualStudio.Jdt.JsonTransformation..ctor(String transformFile, IJsonTransformationLogger logger)
at Microsoft.VisualStudio.SlowCheetah.JsonTransformer.Transform(String sourcePath, String transformPath, String destinationPath)
at Microsoft.VisualStudio.SlowCheetah.TransformTask.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.d__26.MoveNext()

What is the resolution?

When I checkout the setting.debug.json file it's able to build the project otherwise it will give the previous error.

Best Regards,
Damodar

[icnocop]

@Damodark I've posted a few work-around here.

1. Make all files writeable when checking out of source control.

2. Call the Attrib MSBuild task before the transformation to remove the read-only file attribute.
   For example:
   <Attrib Files="D:\Data\…\Settings.Release.json" Normal="true"/>

3. Call the Exec MSBuild task before the transformation to remove the read-only file attribute.
   For example:
   <Exec Command="attrib -R &quot;D:\Data\…\Settings.Release.json&quot;"/>

[abdurezakMussa]

$ dotnet run
Unhandled exception. System.UnauthorizedAccessException: Access to the path 'C:\Users\Coding\Desktop\hobnobReact\appsettings.json' is denied.
at System.IO.FileStream.SeekCore(SafeFileHandle fileHandle, Int64 offset, SeekOrigin origin, Boolean closeInvalidHandle)
at System.IO.FileStream.ReadNativeAsync(Memory1 destination, Int32 numBufferedBytesRead, CancellationToken cancellationToken) at System.IO.FileStream.ReadAsyncInternal(Memory1 destination, CancellationToken cancellationToken, Int32& synchronousResult)
at System.IO.FileStream.ReadAsyncTask(Byte[] array, Int32 offset, Int32 count, CancellationToken cancellationToken)
at System.IO.FileStream.Read(Byte[] array, Int32 offset, Int32 count)
at System.IO.StreamReader.ReadBuffer()
at System.IO.StreamReader.ReadToEnd()
at Microsoft.Extensions.Configuration.Json.JsonConfigurationFileParser.ParseStream(Stream input)
at Microsoft.Extensions.Configuration.Json.JsonConfigurationProvider.Load(Stream stream)
at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load(Boolean reload)
--- End of stack trace from previous location where exception was thrown ---
at Microsoft.Extensions.Configuration.FileConfigurationProvider.HandleException(ExceptionDispatchInfo info)
at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load(Boolean reload)
at Microsoft.Extensions.Configuration.FileConfigurationProvider.Load()
at Microsoft.Extensions.Configuration.ConfigurationRoot..ctor(IList`1 providers)
at Microsoft.Extensions.Configuration.ConfigurationBuilder.Build()
at Microsoft.Extensions.Hosting.HostBuilder.BuildAppConfiguration()
at Microsoft.Extensions.Hosting.HostBuilder.Build()
at hobnobReact.Program.Main(String[] args) in C:\Users\Coding\Desktop\hobnobReact\Program.cs:line 16