No delegateCommandHandler for vscode.java.startDebugSession

[KrithikPatil]

My application is started, the extensions show a disable button, so I assume the extensions are also activated but I still the get "No delegateCommandHandler for vscode.java.startDebugSession" this error, why? Can anyone please solve this?

[github-actions]

Hi @KrithikPatil, I'm an AI Support assistant here to help with your issue. While the team reviews your request, I wanted to provide some possible tips and documentation that might help you in the meantime.

Solution

• Make sure you’re running the latest Language Support for Java and Debugger for Java extensions (v0.49.0 or later). An important fix for this exact error was shipped in vscode-java 0.49.0.
  • Changelog: https://github.com/redhat-developer/vscode-java/blob/master/CHANGELOG.md#0490-september-18th-2019
• After updating, reload VS Code and restart the Java Language Server:
  1. Open the Command Palette (⇧⌘P / Ctrl+Shift+P).
  2. Run Java: Clean the Java language server workspace.
  3. Reload Window.
• If the problem persists, consult the official troubleshooting guide:
  • https://github.com/microsoft/vscode-java-debug/blob/master/Troubleshooting.md#no-delegatecommandhandler-for-vscodejavastartdebugsession-when-starting-debugger

Duplicate Issue

• No delegateCommandHandler for vscode.java.startDebugSession when starting Debugger #728

  “No delegateCommandHandler for vscode.java.startDebugSession when starting Debugger”

Other references with low confidence

• Get Error "No delegateCommandHandler for 'xxx'" eclipse-jdtls/eclipse.jdt.ls#1146 (comment)
  • Describes a caching issue in jdt.ls’s WorkspaceExecuteCommandHandler that can trigger “No delegateCommandHandler …”.

The team will respond to your issue shortly. I hope these suggestions are helpful in the meantime. If this comment helped you, please give it a 👍. If the suggestion was not helpful or incorrect, please give it a 👎. Your feedback helps us improve!

[wenytang-ms]

@KrithikPatil
please share your versions of java extensions, vscode-java, java debug, redhat-java.
is the error msg showed as windows?

[github-actions]

This issue has been closed automatically because it needs more information and has not had recent activity. Please reach out if you have or find the answers we need so that we can investigate further.