Why MySQL says the server is not configured as a slave

Is MySQL giving you the error message “ERROR 1200 (HY000): The server is not configured as slave; fix in config file or with CHANGE MASTER TO” when you try to run START SLAVE? There are a few simple troubleshooting steps to take, but I always forget what to do. This article is to help me remember in the future!

You should now be able to run START SLAVE and start your slave replicating from the master.

Did I miss anything? Let me know, and I’ll add it!