Loading collection data...
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.
You might be throwing an instance of the
Errorclass instead of the value provided as the parametererr. I had the same issue and that's how I got around it.