.NET Acquisition Failed: Lock acquisition timeout with EADDRINUSE error

[rspplowman-cloud]

Description

The .NET Runtime extension fails to acquire a lock during the acquisition process, resulting in a timeout error that prevents the extension from functioning.

Extension Version

3.1.0 (VS Code Insiders)

Error Message

.NET Acquisition Failed: Action: vscdGlLk-2bc5d34a-076d-466d-b3ce-991e87349d9d Failed to acquire lock /var/folders/q2/4nqfv8gs1mv4pdjjnj_4lrh00000gn/T/vscd-vscdGlLk.sock after 12001 retries out of 12001 total available attempts. Last error: EADDRINUSE.

Environment

• OS: macOS
• Extension Version: 3.1.0
• VS Code: Insiders build

Details

The extension attempts to acquire a lock at /var/folders/q2/4nqfv8gs1mv4pdjjnj_4lrh00000gn/T/vscd-vscdGlLk.sock but fails after 12001 retry attempts. The EADDRINUSE error indicates the socket address is already in use, suggesting either:

1. Another VS Code process or instance is holding the lock
2. A stale lock file is not being cleaned up properly
3. The lock timeout configuration needs adjustment

Error Stack Trace

Error: .NET Acquisition Failed: Action: vscdGlLk-2bc5d34a-076d-466d-b3ce-991e87349d9d Failed to acquire lock /var/folders/q2/4nqfv8gs1mv4pdjjnj_4lrh00000gn/T/vscd-vscdGlLk.sock after 12001 retries out of 12001 total available attempts. Last error: EADDRINUSE.
    at S.getErrorOrStringAsEventError (/Users/anonymous/.vscode-insiders/extensions/vscode-dotnet-runtime-library/dist/Acquisition/DotnetCoreAcquisitionWorker.js:301:20)
    at S.next (/Users/anonymous/.vscode-insiders/extensions/vscode-dotnet-runtime-library/dist/Acquisition/DotnetCoreAcquisitionWorker.js:175:38)
    at Generator.next (<anonymous>)
    at s (/Users/anonymous/.vscode-insiders/extensions/vscode-dotnet-runtime-library/dist/Acquisition/DotnetCoreAcquisitionWorker.js:5:58)

Suggested Workarounds (from error message)

• Restart your machine
• Delete the lock file manually
• Increase the timeout time in extension settings
• Set VSCODE_DOTNET_RUNTIME_DISABLE_MUTEX=true in environment variables
• Increase OS path length limit to at least 256 characters
• On Linux, set XDG_RUNTIME_DIR to a writeable directory

Log File

A detailed log file is available at: /Users/m2ultra/Library/Application Support/Code - Insiders/logs/20260702T205927/window3/exthost/ms-dotnettools.vscode-dotnet-runtime/DotNetAcquisition-ms-dotnettools.vscode-dotnet-runtime-1783040502295.txt

Note: This file may contain personal data.

[nagilson]

Did you try those workarounds?