comes up when downloading to my iPad occasionally. It's telling us that the device (iPad) has another version of the project running, even if you've stopped & deleted the app.Couldn't register CPL.XXX 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.
Best solution is turning OFF the device & restarting it. Seems to work & makes sense.