Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When running test suites, you may encounter a fatal error like FATAL ERROR: Ineffective mar...

Fix Python Permission Denied When Installing Packages on Windows
You run pip install somepackage on Windows and get a PermissionError

Fix Git Merge Conflicts with Deleted Files
You're in the middle of a merge and git stops with a conflict. One side deleted a file, the o...

Fixing VS Code Git Authentication Failed Error
If you see "Git authentication failed" when pushing or pulling in VS Code, it usually mea...

Fix ENOENT Error: package.json Not Found in React App
When running npm start or npm install in a React app, you may see an er...

Fix Chrome Status Access Violation Error on Windows 10
You're browsing in Chrome on Windows 10 and suddenly see an error page with: STATUS_ACC...