问题
I installed MonoDevelop 6.3 on Ubuntu using flatpak install --user --from https://download.mono-project.com/repo/monodevelop.flatpakref.
When I create a new console project and hit F5 to start it with debugging, MonoDevelop can't start it and gives me an error message saying:
Debugger operation failed Cannot start process because a file name has not been provided.
Ctrl+F5 also doesn't work, it says:
Cannot execute "/home/sashoalm/...
回答1:
You will need to edit the run configuration and uncheck the box that says "Run on external console," then it will run just fine. Currently, there is no external console application inside the flatpak container, so it is not possible to run on the external console.
来源：https://stackoverflow.com/questions/43951799/console-project-fails-to-run-in-monodevelop-6-3-on-ubuntu