Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

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Latest checklists

If IntelliSense suddenly stops working in Visual Studio Code—no suggestions pop up as you type, o...

If you see connect() failed (111: Connection refused) or connect() failed (13:...

Fix PyCharm Virtual Environment Not Activating
When you open a terminal in PyCharm and see the base Python interpreter instead of your virtual e...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer
If you see fatal: unable to access 'https://...': SSL certificate problem: unable t...

Git Push Rejected Non Fast Forward: How to Fix
You run git push and see: ! [rejected] main -> main (non-fast-forward)

How to Enable Breakpoints in VS Code
If you've set a breakpoint in Visual Studio Code and it's not being hit, or you're no...