Move Qt project from MacOS to Linux causes 255 error

[adamsmith]

I switched from MacOS Mojave to Arch Linux x86_64 today and I have installed ALL of the packages required for Qt and Qt Creator. When I create a new project and run it there is no issue. When I open my project that I created on MacOS there is NO error in any .cpp or .h file but whenever I try to build and run the project I get exited with code 255 in my application output. There are no issues nor warnings with my code. Why might my code not run properly?

Also I tried creating a new Qt desktop application and pasting code from the original project to my "new" project. I edited practically everything but the .pro file and I get 0 errors when I try to build but I still can't run the program without the exited with code 255 error.

Compile output

13:16:27: Running steps for project PerfectNote...
13:16:27: Configuration unchanged, skipping qmake step.
13:16:28: Starting: "/usr/bin/make" -j4
make: Nothing to be done for 'first'.
13:16:28: The process "/usr/bin/make" exited normally.
13:16:28: Elapsed time: 00:00.

General messages

2019-07-14T12:20:04 Clang Code Model: Error: The clangbackend process has finished unexpectedly and was restarted.

Debugging mode, application output

13:17:52: Unable to create a debugging engine.

Kernel: 4.19.58-1-lts
WM: i3
Output of pacman -Q | grep qt:

pyqt5-common 5.13.0-1
pyqtwebengine-common 5.13.0-1
python-pyqt5 5.13.0-1
python-pyqtwebengine 5.13.0-1
python-sip-pyqt5 4.19.18-1
qt5-base 5.13.0-7
qt5-declarative 5.13.0-1
qt5-doc 5.13.0-1
qt5-location 5.13.0-1
qt5-multimedia 5.13.0-1
qt5-quickcontrols 5.13.0-1
qt5-quickcontrols2 5.13.0-1
qt5-script 5.13.0-1
qt5-svg 5.13.0-1
qt5-tools 5.13.0-1
qt5-webchannel 5.13.0-1
qt5-webengine 5.13.0-2
qtcreator 4.9.2-2

Edit: I added qDebug() << "here"; at the top of my file but could not see it in application ouput or anywhere else. However when I enter the build-myApp-debug folder and run ./myApp I get the correct output from qDebug()! Anybody got any idea why the output in Qt Creator does not work?

[SGaist]

Hi,

Did you get any warning when compiling ?
Do you have gdb installed ?