[BUG] Command '.NET:New Project...' resulted in an error Stream terminated before required bytes where read.

[bwulms]

Describe the Issue

I installed Visual Studio Code, C# Dev Kit and .NET SDK 8.0 on a new Macbook Air with M3.

I followed the steps as described at https://code.visualstudio.com/docs/csharp/get-started.

When I want to create a new project using .NET: New Project... command I get the following error:

Command '.NET:New Project...' resulted in an error
Stream terminated before required bytes where read.

Steps To Reproduce

There is no output in the debug console

Expected Behavior

I expect to be able to create a new C# project.

Environment Information

• OS: macOS 14.5
• Visual Studio Code 1.89.1
• C# Dev Kit extension v.1.6.8
• C# extension v2.31.19
• .NET Install Tool extension v.2.0.5

[smitpatel]

@bwulms - Thanks for reporting this issue. Can you answer few questions to help us investigate the root cause?

1. Does this happen always or sometimes only?
2. Does this happen to any template or when creating project using particular template only?
3. Can you share logs from output window in VS Code. There would be category C# dev kit which will have logs for this extension.
4. Can you share how is the error reported?

[bwulms]

1. This happens always
2. It happens when I go the the command window (shitf-command-p), type .NET: New pro to filter en then select the command '.NET: New Project...'. At this point I get a popup dialog with the error message mentioned above. Note that there is no selection option for a particular template.
3. At this point there is no output in the output window in VS Code, als not for the C# dev extension.
4. The error is reported in a popup dialog.

I also tried the following:
From the VS Code terminal window I gave the following commands:
dotnet new console
dotnet new sln

This created a simple console project and a solution file.
When I select this solution file in VS Code and click the blue 'Open Solution' button in the Solution Explorer I get the following error in the output window for the C# dev extension:

Failed at 'Open a solution' (1ms) with error: SolutionOpenError: Run into errors while opening the solution: Error: Stream terminated before required bytes were read.
Starting Open a solution...
Starting Open a solution with environment service...
Starting Clear environment...
Failed at 'Clear environment' (0ms) with error: Error: Stream terminated before required bytes were read.
Failed at 'Open a solution with environment service' (0ms) with error: Error: Stream terminated before required bytes were read.
Failed at 'Open a solution' (1ms) with error: SolutionOpenError: Run into errors while opening the solution: Error: Stream terminated before required bytes were read.

Please let me know If you need additional information.

[smitpatel]

@bwulms - Thanks for information.

@lifengl - Looking at the same error occurring open solution, looks like it is not related to particular action but something fundamentally erroring in extension activation. Perhaps some issue with creating RPC calls. I also found #679 which has same error. Any ideas how to recover from this error or what else is needed for investigation?

[bwulms]

The problem has been solved. It was caused by the migrate of my old mac (intel based) to my new mac (apple silicon). When I opened an existing solution I noticed the following error message in the C# Dev extension:

.NET server STDERR: Failed to load /usr/local/share/dotnet/shared/Microsoft.NETCore.App/6.0.18/libhostpolicy.dylib, error: dlopen(/usr/local/share/dotnet/shared/Microsoft.NETCore.App/6.0.18/libhostpolicy.dylib, 0x0001): tried: '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/6.0.18/libhostpolicy.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64')), '/System/Volumes/Preboot/Cryptexes/OS/usr/local/share/dotnet/shared/Microsoft.NETCore.App/6.0.18/libhostpolicy.dylib' (no such file), '/usr/local/share/dotnet/shared/Microsoft.NETCore.App/6.0.18/libhostpolicy.dylib' (mach-o file, but is an incompatible architecture (have 'x86_64', need 'arm64e' or 'arm64'))

Apparently the migration tool also migrated the installed dotnet versions of my old mac.

To solve the problem I removed the directory /usr/local/share/dotnet completely and reinstalled the dotnet 8 sdk from scratch.

Thank you for your time.

[bwulms]

Solved by removing dotnet completely by deleting /usr/local/share/dotnet and then installing only the arm version of the dotnet 8 sdk.

[geomorillo]

im on windows 10 and have the same problem, reading here i realized i had more than 1 vscode versions installed

[jeffstienstra]

Solved by removing dotnet completely by deleting /usr/local/share/dotnet and then installing only the arm version of the dotnet 8 sdk.

This has been plaguing me for weeks! Thank you!