Problem running project

[Mayron]

My project runs on a generic linux platform and I need to run it locally on Ubuntu 18.04. After changing the .pro to differentiate between the execution platforms, the following error appears:

does anyone know how to solve this?

[JonB]

@Mayron
Your compile output only shows relinking of *.o files. I think it's complaining because the .os it finds are not in an acceptable ELF format. Don't you have to regenerate/recompile all the .o files (or at least Interface.o, maybe it's just that one?) under Ubuntu? Make absolutely sure you have cleaned out any *.o files before you start.

Or am I misunderstanding?