Checklists for software errors, setup, and tool workflows.

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Latest checklists

You run git status and see something like "HEAD detached at abc123". This ha...

If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...

Fixing Python UnicodeDecodeError When Reading UTF-16 Files
You open a file in Python and get UnicodeDecodeError: 'utf-8' codec can't decod...

How to Enable Chrome Extensions That Aren't Loading
You open Chrome and see a grayed-out extension icon. Clicking 'Enable' does nothing, or t...

Fix npm run build Permission Denied on Linux
You run npm run build on your Linux machine and see Permission denied. ...

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...