Hello,
I have a form with multiple TSQLQueries and everything worked fine until I upgraded to Lazarus 0.9.30.4. After upgrading after opening one of the queries I got the error from the topic. The strange thing is the other queries are working fine. I downgraded to Lazarus 0.9.30.2 back but the error is still there.
Currently using Lazarus 0.9.30.2, Windows XP SP3