Checklists for software errors, setup, and tool workflows.

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

You run docker build and get an error like:

failed to solve: error fetching ...

Fix 'Command Not Found' in Task Scheduler on Windows Server

When a scheduled task on Windows Server fails with a 'command not found' error, the task typicall...

Fix Task Scheduler Permission Denied for SSL Certificate Tasks

You set up a scheduled task in Windows that needs to access an SSL certificate—perhaps for certif...

Jupyter Kernel Connection Error: Causes and Fixes

You start a Jupyter notebook, try to run a cell, and see a message like "Kernel error" or "Connec...

Fix Windows Security DNS Errors After a Windows Update

After a recent Windows update, you may see a DNS error inside Windows Security (formerly Windows ...