Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

When you see SSL certificate error: not trusted in Command Prompt, it usually means ...

When downloading a file in Chrome on Ubuntu, you might see an error like Failed - Error cod...

Fix Maven Dependency Resolution Failed in Eclipse
When you see a red error marker on your Maven project in Eclipse with a message like “Could n...

Fix PowerShell Stuck on Startup in Windows 10
If PowerShell appears to hang or become unresponsive every time it starts on Windows 10, the issu...

How to Unlock a File Locked by Chrome Browser
You try to rename, move, or delete a file, but Windows says it's open in Chrome. Even after closi...

Fix Chrome Profile Authentication Failed on Mac
If you see a "Profile authentication failed" error in Chrome on your Mac, it usually means Chrome...