I am suddenly getting an "undefined reference" error when building my code. Here is an example of one of the errors: .obj/release-shared/moc_subclass.o:(.rodata+0x1d8): undefined reference to `frmSubForm::Function()' 1. Running Ubuntu 10.04 2. Compiling for arm linux 3. Using qt version that comes with FriendlyARM CD 4. I set up my projects with the standard: qmake -project, qmake project.pro, make The error is in reference to any function I add to my "public slots" region in my subclass header. Any functions that were already present do not get an error- only new functions that I add in designer and then try to subclass in my own code. Everything has been set up and working for the last couple of months. I suspect that one of the Ubuntu updates may have caused this. Has anyone else seen this problem? jrh