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 Not Loading
If Firefox shows a “Secure Connection Failed” error and won’t let you load a site, it usually mea...

Fix Windows Update Error 0x80070002
Windows Update error 0x80070002 usually appears during an update attempt. The system may stall at...

Fix Git Stash Error: index.lock File Exists
You run git stash and see: fatal: Unable to create 'path/.git/index.lock&#...

Fix Chrome Memory Spikes When Watching Videos
You're watching a video in Chrome, and suddenly the system slows down, fans spin up, or tabs ...

Fix 'package.json Not Found' After Cloning a Repository
Symptom
You clone a repository from GitHub (or another remote), change into the directory...