Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

You type a command like python or npm in Command Prompt and get an erro...

When running Composer on a Linux server, you may see errors like Fatal error: Allowed memor...

Fix npm command not found without sudo
You type npm install and get npm: command not found. This usually means...

Fix Windows Activation File Locked by Antivirus
If you see an error like “Windows activation file locked by antivirus” or activation repeatedly f...

Fix Ubuntu apt update GPG missing key error
When running sudo apt update, you might see an error like:
The following sig...

Fix Windows Search Indexing Stuck or Frozen
When Windows Search indexing gets stuck or frozen, you may notice that file searches return no re...