I'm trying to migrate from dev-c++ to code-block in Ubuntu but every-time I try to compile & run it shows a message "project has not been built yet". I searched and read for hours what's wrong as I know it's a silly thing but I couldn't find an understandable answer to solve my problem. Please, can anyone tells me? step by step what do I need to do apart from un-install code-block & keep working Dev-C++. Javier Thanks