Checklists for software errors, setup, and tool workflows.

How to Fix Microsoft Teams DNS Error

You open Microsoft Teams and get a message like "Can't connect" or "DNS error." This usually mean...

Fixing npm Dependency Conflicts from Duplicate Packages

You run npm install and see warnings about unmet peer dependencies or conflicting ve...

Fix Windows Update 504 Gateway Timeout Related to Firewall Settings

If you see a 504 gateway timeout when running Windows Update, it usually means the update server ...

Fix Outlook File Locked Error: Practical Steps

You try to open Outlook and see a message like "The file Outlook.pst is locked" or "Cannot open y...

How to Fix Git Push Non-Fast-Forward Error

You run git push and get: ! [rejected] main -> main (non-fast-forward)....

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...