Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you run pip install on certain Linux distributions (like Debian 12, Ubuntu 23.0...

When building a Docker image on Windows 10, you may see an error like build context cancele...

Recover Lost Changes After Git Detached HEAD
You've made several edits, then checked out an old commit or tag, and now Git says you're...

Fix Git Clone Connection Timed Out Due to Proxy Settings
You run git clone https://github.com/example/repo.git and after a long pause you get...

Fix Git 'index.lock' File Exists Error in IntelliJ
If you see an error like fatal: Unable to create 'project/.git/index.lock': File ex...

Fix VSCode Permission Denied Extension Errors
If you see a "permission denied" error when trying to install or update an extension in V...