I donβt know why this is not working. Perhaps the simulator that starts may not be the version you expect. You can check inside Console.app to see what went wrong.
In any case, you can use mtouch to launch your application, for example.
/Developer/MonoTouch/usr/bin/mtouch --launchsim=/path/to/your/application.app
You can also specify which version of iOS to use and the device (iPhone or iPad) to run.
By default, it runs on the iPhone simulator. Adding the --device=2 flag --device=2 switch it to the iPad.
See the mtouch man page or mtouch --help .
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