I'm moving an IntraWeb project from Delphi XE to XE8 with the latest DOA for XE8 dated 5/11/2015 installed. This morning I got the error message:
[dcc32 Fatal Error] F2051 Unit OracleVisual was compiled with a different version of FireDAC.Phys.Oracle.DOAHelpFile
stopping on the OracleData unit name.

The folder c:\program files\embarcadero\studio\16.0\DOA with OracleData.dcu is in the Library path. The Source folder is available if needed.

What do you suggest?

Thanks,

PRice

Can you try this?

1. Exit Delphi XE8.
2. Rename your current <project>.dproj file to <project>.dproj.error.
3. Create a new dummy project with a simple empty form in a different directory and save it.
4. Edit dummy.dproj in Notepad and replace all occurrences of "dummy" with your <project> name.
5. Save the file as <project>.dproj in the original project directory.
6. Restart Delphi XE8 and try to build your project again.

Great!! Not sure which of the .dproj differences caused the error, but it works, thanks.