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Collections are a way for you to organize kata so that you can create your own training routines. Every collection you create is public and automatically sharable with other warriors. After you have added a few kata to a collection you and others can train on the kata contained within the collection.
Get started now by creating a new collection.
I'm having the same issues but for a different reason. I was stupid and didn't understand the instructions at all. I didn't implement any method to keep tract of the progress of a user and just wrote code for a one time run