When I try to drag a MySQL table to a DataSet after successfully adding a connection to a database in Server Explorer, I receive two error messages, one after the other:
in my case the error statement was "you have a usable connection already" rather than "Unexpected Error" when adding a table as a data source, the above solution with MySql for VS 1.2.7 and MySql .net connector 6.9.8 worked for me as well. these need to be installed in the exact order as mentioned above. I'm using VS2017 15.9.11.