Checklists for software errors, setup, and tool workflows.

Fix 'port already allocated' Error in Docker Compose

You run docker compose up and see port is already allocated. This means...

Fix VS Code Git Authentication Failed with Two-Factor Auth

When you have two-factor authentication (2FA) enabled on your Git service (GitHub, GitLab, Bitbuc...

How to Fix Windows Update Error 0x80070002

Error 0x80070002 often appears when Windows Update tries to install an update but can't find ...

How to Fix Git LFS Push Error 403

You're trying to push a large file with Git LFS and get a 403 error. This usually means the s...

Fix net::ERR_CERT_AUTHORITY_INVALID on Chrome in Linux Terminal

When you see net::ERR_CERT_AUTHORITY_INVALID in Chrome on Linux, it usually means th...

Fix Git index.lock File Exists Permission Denied Error

You're in the middle of a Git operation and suddenly you see:

fatal: Unable to ...