Florian Sterk

I had the same error after migrating our code from Delphi XE2 to 11.2. After calling ApplyUpdates(-1) on a TClientDataSet I received an "invalid parameters" exception. Under Delphi XE2 the same code was executed without any errors. In our case the problem was an old version of midas.dll (dated from 2012) in the C:\Windows\SysWow64 directory. After copying the midas.dll from C:\Program Files (x86)\Embarcadero\Studio\22.0\bin\ that had come with Delphi 11.2 (file date 2022/08/22) to C:\Windows\SysWow64 the error disappeared and everything worked fine. It seems like the error message is misleading and the error was resulting from a library incompatibility.