Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run npm install or npm start and get something like:

...

Fix 'python' Command Not Found in Windows PowerShell
When you type python in Windows PowerShell and see python : The term 'pyth...

Fix Node Engine Requirement Not Satisfied Error
You run npm install and see: engine "node" is incompatible with this m...

Fix Windows Security App Access Denied Error
When you open Windows Security (formerly Windows Defender Security Center) and see an 'Access...

How to Resolve Python pip Dependency Conflicts
You run pip install and see a wall of text about DependencyConflict or ...

Git index.lock File Exists: Quick Fix Checklist
You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...