Bootstrap server error when running app on Device in Xcode4

Couldn't register taxsmart.MapTest with the bootstrap server. Error: unknown error code.
This generally means that another instance of this process was already running or is hung in the debugger

I get this Error when I try to install my app on my Device.

I already tried restarting Mac and device.

Also tried cleaning the app and re-building. But did not work for me.开发者_运维问答

Also I tried refering to this link but didn't help me.

Bootstrap Server Error in Xcode IPHONE

What can be done?

I restarted my Mac and my device and it worked.

You didn't mention specifically, so I'll ask: Have you tried manually deleting the application from the device? Tap and hold its icon. When they begin to wiggle, hit the x in the upper-left of the icon and confirm deletion.