Edit : made. But now it asks me with what application open it (executable).
Maybe you need to set the file permissions to add executable to them? The easiest way is to use the file viewer and click “Allow executing file as program” under the properties for the file. You can also use the “chmod 755 magi-qt” command at the terminal.
I was set in the properties that no one could execute it. Now everyone so I click on it and then execute. And then ... NOTHING ! Just nothing happen. Help me please.
Can you try running it from the terminal and see if there are any error messages that show up when you try to run the file? (From terminal: ./magi-qt) Hopefully that will give some clues as to what is the problem.