Firebase Cloud Firestore : Invalid collection reference. Collection references must have an odd number of segments

Question

I have the following code and getting an error :

Invalid collection reference. Collection references must have an odd number of segments

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Answer 1

I've encountered this issue when I provided a wrong entity_Id.

Instead of dojo/default/datasets/fe67ec58-6208-4234-a4ee-98c5dce4665f, I've provided fe67ec58-6208-4234-a4ee-98c5dce4665fand now is working fine.