So as a user, I got this
Error Returned - Code: 500 Error Text: SYSTEM ERROR: IllegalArgumentException: You tried to read a [RepeatedInt] type when you are using a field reader of type [NullableIntReaderImpl]. It's a JSON dataset, the record exists in some row, and not in others, but I have no idea how to interpret this or how to handle it. I feel like we should try to curate error messages like this to help improve them for the end user. John
