Hacktoberfest 2026: the issues maintainers tagged for October, open and beginner-friendly. Browse Hacktoberfest issues

build fail on M-x lsp-java-build-project

Open
  • Is something wrong?
#488 1 comment 0 reactions 0 assignees View on GitHub

Nobody has claimed this yet.

Assessment

Difficulty
4/5
Estimated time
3-5 days
Newbie friendliness
25/100
Issue type
Bug
Clarity
Needs clarification
Activity status
Stale
Tech stack
emacs-lisp, java
Domain
developer-experience, tooling

Research direction

Start by reproducing M-x lsp-java-build-project and reviewing the attached emacs_lsp_log.txt alongside the reported progress notification and error message. No source file or test is named; done means identifying why the command reports failure and confirming that project builds complete successfully through the command.

Written by the indexing model from the issue text.

Description

Describe the bug
unknown build error , also there's a bunch of M-x lsp-java-* commands that just don't work for me. But the LSP server is up and running and giving autocomplete.

To Reproduce
M-x lsp-java-build-project

Expected behavior
Expected build to succeed, it kind of looks like it does from the logs,

[Trace - 09:40:05 PM] Received notification 'language/progressReport'.
Params: {
  "id": "5bb4bbe1-cd80-4383-9bc9-bf10db44c39c",
  "task": "Building",
  "subTask": "",
  "status": "100% ",
  "totalWork": 1000,
  "workDone": 1000,
  "complete": true
}

but i get this error message.

Screenshots
image

image

Logs
emacs_lsp_log.txt

Dominant language
Emacs Lisp
Stars
696
Forks
97
No merged PRs in 30d

Getting set up

This project ships no dev container, Dockerfile or contributing guide, so setting up is up to you: start from its README, and see our first-contribution guide for the general steps.

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

More from emacs-lsp/lsp-java

All issues in emacs-lsp/lsp-java

Similar issues

More DevTools issues

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.