Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you're seeing a timeout error when running git clone on your Mac, the clone f...

You're installing a package with pip, and suddenly you see a wall of red text: ERROR: C...

Fix Node Version Incompatible with Dependencies
You run npm install and see errors like Unsupported engine or req...

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

Fix Git 'index.lock' File Exists Error in SourceTree
If you use SourceTree and see an error message like fatal: Unable to create 'path/to/.g...

Fix npm run build Permission Denied on Linux
You run npm run build on your Linux machine and see Permission denied. ...