microsoft / microsoft/vscode-java-debug
Could not find or load main class & ERROR: transport error 103: invalid port number specified
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- TypeScript
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Description
Error: Could not find or load main class
Caused by: java.lang.ClassNotFoundException
If I take the java command and directly run it, I got these errors
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start by reproducing the Java command shown in the report and compare it with the launch configuration that produced the errors. Done means identifying why the main class cannot be loaded and why the transport port is invalid, then confirming a corrected debug launch.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, vscode
- Domain
- devtools
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100