Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run git push and see: ! [rejected] main -> main (non-fast-forward)

Fix npm ERR! enoent ENOENT: package.json Not Found in node_modules
You run npm install or npm start and get something like:
...

How to Fix npm ERR! enoent ENOENT: package.json Not Found
If you see npm ERR! enoent ENOENT: no such file or directory, open '.../package.json...

Fix npm run build Failures After npm install
After running npm install, you may find that npm run build fails with c...

How to Fix Git Detached HEAD Error
You run git status and see "HEAD detached at" followed by a commit hash. Thi...

How to Clear pnpm Cache: Step-by-Step Guide
If you're seeing unexpected build errors, outdated dependencies, or running low on disk space...