Azure Function in VS Code

Question

Azure Function in VS Code

Diptangshu Karmakar 0

When I am trying to debug the my Azure Function it is ending up in the error. Please

terminal Logs:

C:\Program Files\dotnet\dotnet.EXE clean /property:GenerateFullPaths=true /consoleloggerparameters:NoSummary

WorkerExtensions succeeded with 1 warning(s) (1.1s)

C:\Users\diptangshu.karmakar\.nuget\packages\microsoft.net.sdk.functions\4.3.0\build\Microsoft.NET.Sdk.Functions.Build.targets(111,5): warning MSB3231: Unable to remove directory "C:\Development\MyTestAzureFunctionApp\obj\Release\net8.0\WorkerExtensions\bin\Debug\net6.0\". Access to the path '\\?\C:\Development\MyTestAzureFunctionApp\obj\Release\net8.0\WorkerExtensions\bin\Debug\net6.0\bin' is denied.

MyTestAzureFunctionApp succeeded with 1 warning(s) (1.8s)

C:\Users\diptangshu.karmakar\.nuget\packages\microsoft.azure.functions.worker.sdk\2.0.0\build\Microsoft.Azure.Functions.Worker.Sdk.targets(242,5): warning MSB3231: Unable to remove directory "C:\Development\MyTestAzureFunctionApp\obj\Debug\net8.0\WorkerExtensions". Access to the path '\\?\C:\Development\MyTestAzureFunctionApp\obj\Debug\net8.0\WorkerExtensions\buildout\bin' is denied.

Build succeeded with 2 warning(s) in 5.1s

Terminal will be reused by tasks, press any key to close it.
Executing task: C:\Program Files\dotnet\dotnet.EXE build /property:GenerateFullPaths=true /consoleloggerparameters:NoSummary

Restore complete (1.2s)

WorkerExtensions succeeded (9.0s) → obj\Release\net8.0\WorkerExtensions\bin\Debug\net6.0\Microsoft.Azure.Functions.Worker.Extensions.dll

MyTestAzureFunctionApp failed with 1 error(s) (9.7s)

C:\Users\diptangshu.karmakar\.nuget\packages\microsoft.azure.functions.worker.sdk\2.0.0\build\Microsoft.Azure.Functions.Worker.Sdk.targets(136,5): error MSB4018:

  The "GenerateFunctionMetadata" task failed unexpectedly.

  System.IO.IOException: Access to the path '\\?\C:\Development\MyTestAzureFunctionApp\obj\Debug\net8.0\W

  orkerExtensions\buildout\bin' is denied.

     at System.IO.FileSystem.RemoveDirectoryRecursive(String fullPath, WIN32_FIND_DATA& findData, Boolean

   topLevel)

     at System.IO.FileSystem.RemoveDirectory(String fullPath, Boolean recursive)

     at Microsoft.Azure.Functions.Worker.Sdk.ExtensionsCsprojGenerator.RecreateDirectory(String directory

  Path) in D:\a\_work\1\s\sdk\Sdk\ExtensionsCsprojGenerator.cs:line 54

     at Microsoft.Azure.Functions.Worker.Sdk.ExtensionsCsprojGenerator.Generate() in D:\a\_work\1\s\sdk\S

  dk\ExtensionsCsprojGenerator.cs:line 46

     at Microsoft.Azure.Functions.Worker.Sdk.Tasks.GenerateFunctionMetadata.Execute() in D:\a\_work\1\s\s

  dk\Sdk\Tasks\GenerateFunctionMetadata.cs:line 53

     at Microsoft.Build.BackEnd.TaskExecutionHost.Execute()

     at Microsoft.Build.BackEnd.TaskBuilder.ExecuteInstantiatedTask(TaskExecutionHost taskExecutionHost, 

  TaskLoggingContext taskLoggingContext, TaskHost taskHost, ItemBucket bucket, TaskExecutionMode howToExe

  cuteTask)

Build failed with 1 error(s) in 11.6s

The terminal process "C:\Program Files\dotnet\dotnet.EXE 'build', '/property:GenerateFullPaths=true', '/consoleloggerparameters:NoSummary'" terminated with exit code: 1.
Terminal will be reused by tasks, press any key to close it.

Using the below launch.json configuration

User's image

Kindly help me with the solution.

Kyle Burns 326 Reputation points Microsoft Employee

2025-05-21T13:25:01.0533333+00:00
This looks like an issue with file system permissions. Here are a few things that you can try to resolve it:

Ensure Necessary Permissions:

Verify that you have the necessary permissions to access and modify the directories mentioned in the errors. You can do this by checking the directory properties and ensuring that your user account has full control.

Run as Administrator:

Run your development environment or IDE (Visual Studio Code) as an administrator to gain elevated permissions. This can often resolve permission-related issues.

Check Antivirus/Security Software:

Check if any antivirus or security software is blocking access to these directories. Configure the software to allow access to these directories if necessary.

Verify Directory Usage:

Ensure that the directories are not being used by other processes or applications. Sometimes, other applications might lock the directories, causing access issues.

By following these recommendations, you should be able to resolve the permissions issue and successfully debug your Azure Function.
Diptangshu Karmakar 0 Reputation points

2025-05-22T06:08:55.2033333+00:00

I have tried all the above suggestions bit still it is not working
Ranashekar Guda 2,670 Reputation points Microsoft External Staff Moderator

2025-05-23T18:31:26.4566667+00:00

Hello @Diptangshu Karmakar,
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Diptangshu Karmakar 0 Reputation points

2025-05-26T05:09:24.47+00:00

Hello @Ranashekar Guda

The existing applications are still having the same issues but when I created new functions those are working fine.
Ranashekar Guda 2,670 Reputation points Microsoft External Staff Moderator

2025-05-26T19:50:14.8366667+00:00

Hello @Diptangshu Karmakar,
Could you please check the storage account availability and accessibility of not working function app.
Ranashekar Guda 2,670 Reputation points Microsoft External Staff Moderator

2025-05-27T19:12:19.49+00:00

Hello @Diptangshu Karmakar,
Just following up again to see if you were able to resolve the issue or if there's anything else I can assist you with. Let me know if you need further help.

1 answer

Your answer

Kyle Burns 326 Reputation points Microsoft Employee

2025-05-21T13:25:01.0533333+00:00

This looks like an issue with file system permissions. Here are a few things that you can try to resolve it:

Ensure Necessary Permissions:

Verify that you have the necessary permissions to access and modify the directories mentioned in the errors. You can do this by checking the directory properties and ensuring that your user account has full control.

Run as Administrator:

Run your development environment or IDE (Visual Studio Code) as an administrator to gain elevated permissions. This can often resolve permission-related issues.

Check Antivirus/Security Software:

Check if any antivirus or security software is blocking access to these directories. Configure the software to allow access to these directories if necessary.

Verify Directory Usage:

Ensure that the directories are not being used by other processes or applications. Sometimes, other applications might lock the directories, causing access issues.

By following these recommendations, you should be able to resolve the permissions issue and successfully debug your Azure Function.
Diptangshu Karmakar 0 Reputation points

2025-05-22T06:08:55.2033333+00:00

I have tried all the above suggestions bit still it is not working
Ranashekar Guda 2,670 Reputation points Microsoft External Staff Moderator

2025-05-23T18:31:26.4566667+00:00

Hello @Diptangshu Karmakar,
Just checking in to see if above information was helpful. If you have any further updates on this issue, please feel free to post back.
Diptangshu Karmakar 0 Reputation points

2025-05-26T05:09:24.47+00:00

Hello @Ranashekar Guda

The existing applications are still having the same issues but when I created new functions those are working fine.
Ranashekar Guda 2,670 Reputation points Microsoft External Staff Moderator

2025-05-26T19:50:14.8366667+00:00

Hello @Diptangshu Karmakar,
Could you please check the storage account availability and accessibility of not working function app.
Ranashekar Guda 2,670 Reputation points Microsoft External Staff Moderator

2025-05-27T19:12:19.49+00:00

Hello @Diptangshu Karmakar,
Just following up again to see if you were able to resolve the issue or if there's anything else I can assist you with. Let me know if you need further help.

Answer 1

Ranashekar Guda 2,670 Microsoft External Staff Moderator

Hello @Diptangshu Karmakar,
System.IO.IOException: Access to the path '\?\C:\Development\MyTestAzureFunctionApp\obj\Debug\net8.0\W orkerExtensions\buildout\bin' is denied.

Means you have a network configuration which is blocking access to the Azure Storage Account on which your Azure Function is hosted.

So could you please check the accessibility to storage account from function app.

Share via

Azure Function in VS Code

1 answer

Your answer