Challenges

Common questions and troubleshooting challenges

CLI

How to install & use the CodeCrafters CLI

Billing

Questions about invoices, billing, and access

Forum

Questions about joining our forum

Profile Pages

Finding and editing your profile page
Here are answers to the most frequently visited questions

How do challenges work?

Can I re-attempt a challenge in a different language?

Can I install additional dependencies?

How do I debug test failures?

How do I debug test failures in the Redis Challenge?

How do I get an invoice?