Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You run git pull or git merge and get:

fatal: refusing to...

Fix Firefox Secure Connection Failed Due to Cache
You see a 'Secure Connection Failed' error in Firefox, often with messages like PR_CO...

Fix Error 0x80070002 in Windows Update Registry
Error 0x80070002 during Windows Update typically means the system cannot find a required file. Th...

VS Code Terminal Not Opening with SSH: Fixes
You connect to a remote server via SSH in VS Code, but the integrated terminal stays blank or nev...

Docker Container Exits Immediately in Foreground Mode: Fixes
You run a Docker container with docker run -it myimage and it exits immediately. The...

Fix 'nginx configuration test failed invalid parameter'
When running nginx -t to test configuration, seeing "nginx: [emerg] inva...