Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

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

Fix Nginx Configuration Test Failure After SSL Setup
You've just added SSL certificates to your Nginx server block, but nginx -t retu...

Fix Chrome Access Violation Error 0x00000000
If you see an access violation error with code 0x00000000 in Chrome, it usually means the browser...

Fix Node Version Incompatibility When Running npm install
You run npm install and get an error like engine "node" is incompatibl...

Git Fatal: Refusing to Merge Unrelated Histories – Workaround
You try to merge two Git branches and get this error:
fatal: refusing to merge unre...

Fix Nginx Configuration Test Failure from Rewrite Rules
You run nginx -t and get an error. The log points to a rewrite rule. This is common ...