[Qt-creator] Error running the application "Failed to start program. Path or permissions wrong?"

[Gilles Valette]

> I also have the sources/headers like 
> SOURCE += ../src/file1.cpp \
>    ../src/file2.cpp

> HEADERS += ../inc/file1.hpp \
>    ../inc/file2.hpp

> Is there something similar for that?

INCLUDEPATH = ... to specify the #include directories

Gilles