Checklists for software errors, setup, and tool workflows.

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Latest checklists

When you run docker pull for a private repository and get an access denied

Python Requests: Fixing Connection Timeout with Proxies
You're using the Python requests library with a proxy, and you're seeing a <...

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

Fix pip Error: Externally Managed Environment
If you're on a modern Linux distribution (like Debian 12, Ubuntu 23.04+, Fedora, or Arch) and...

Fix Git 'index.lock file exists' Error
When you see the error fatal: Unable to create 'path/.git/index.lock': File exists....

Fix pnpm Install Failures in CI/CD Pipelines
When pnpm install fails in your CI/CD pipeline, it usually stops the build. The error messages va...