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xamarinxamarin.iosrider

The selected device was disconnected and cannot be accessed anymore from this machine

I am trying to run my Xamarin app in debug mode on an iPhone 11. But I'm getting a "cannot be accessed" error.

iPhone 11 connection error message

And when I attempt to open the simulator I get the following error.

Simulator error message

I've upgraded to the latest version of Rider (2020.2.3) but I'm still getting the issue. Why can't I run my app on iPhone?

Solution

  • You need to install additional XCode components—likely because of a recent MacOS update. Do the following:

    1. Open XCode

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    1. Click "Install" when prompted

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    Once the components have been installed, you should be able to run your app on an iPhone.

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