I set LSMultipleInstancesProhibited to YES, but if launch executable file(/Contents/MacOS/) in terminal, the macOS app can be run multiplely. for example: first terminal can run first executable file, second terminal can run second executable file. Please help. Thanks in advance.

CodePudding user response：

You could get the information of your own app and check if there is already running instance in the system. Programmatically check if a process is running on Mac

CodePudding user response：

Running the executable from terminal bypasses LaunchServices. To launch as normally, issue command open -a myapp.app