Emacs Tips

Emacs Tips

Yarn failing due to lock files

When editing a file, modern versions of Emacs create a hidden "lock file" in the same directory. These files prevent multiple Emacsen from editing the same file, and use the original filename prepended with a .#. The lockfiles confuse the frontend build, resulting in errors like this one:

$ yarn build-hot
<snip>
[Error: ENOENT: no such file or directory, stat '<snip>/metabase/frontend/src/metabase/dashboard/components/.#Dashboard.jsx'] {
  errno: -2,
  code: 'ENOENT',
  syscall: 'stat',
  path: '<snip>/frontend/src/metabase/dashboard/components/.#Dashboard.jsx'
}
error Command failed with exit code 1.

The simplest way to fix it is to disable lock file creation:

(setq create-lockfiles nil)