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:

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Git Merge Conflict Checklist Before Merging
You're about to merge a branch, but you've been burned by merge conflicts before. This ch...

Fix 'Permission Denied' When Activating Python venv
When you try to activate a Python virtual environment with source venv/bin/activate ...

Fix Git Push Rejected Non-Fast-Forward After Pull
You run git pull, then git push, and get: ! [rejected] non-fast-f...

How to Use Git LFS with GitHub: Setup and Troubleshooting
You're trying to push a large file to a GitHub repository and get a message like this f...

Fix VS Code 'Cannot Save File: Permission Denied' on Mac
You're editing a file in VS Code on your Mac, hit save, and get: 'Failed to save:...