Error Trying to use Table  _TypeError (type 'List<dynamic>' is not a subtype of type 'List<Map<String, dynamic>>')

Hi, I am testing and found this very interesting, all is working except the Table.
In this instuction

 return _TableResult(
        result["tablename"], result["rows"], result["columns"]);

on result["rows"] triggers the error.

Any hint on how to correct it?

