Document references must have an even number of segments error on a collection reference

Question

I\'m getting the rather simple error:

Document references must have an even number of segments.

I\'m aware of what it is telling me and ho

Answer 1

Because neither the above nor other similar posts helped me..

I got this error when calling set data and then immediately after .getDocument(...) (i.e. reading data). When I called my read data method in the completion handler of the setData method then the error message disappeared.