Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see an error like fatal: Unable to create 'path/to/repo/.git/index.lock': Fi...

Fix VSCode Source Control Not Detecting Changes
You open the Source Control panel in Visual Studio Code, expecting to see your file changes, but ...

Fix Python Permission Denied When Installing Virtualenv with Pip
When you run pip install virtualenv and see a Permission denied err...

Fix ERR_CONNECTION_RESET on Specific Websites
ERR_CONNECTION_RESET is a common Chrome error that prevents loading certain websites while others...

Fix 'Permission Denied' When Running pip install --user
If you see Permission denied when running pip install --user somepackage

Docker Compose: Fix 'Port Already in Use on Host' Error
When you run docker compose up and see an error like port is already allocated...