On Mon, Feb 16, 2009 at 02:54:57PM -0600, Justin Giles wrote: > Thanks for the reply, but that didn't seem to help. > > Just to clarify, the error falls in the "mywindow.h" file. > > so.... > > error: invalid use of undefined type 'struct Ui::MyWindow' > mywindow.h(6) Show the code ;-) Andre'