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With a Xamarin iOS project that has the Deployment target set to, for example, 8.0, when you try to deploy to a device with iOS < 8.0, you get the following error in the errors pane:
"Failed to deploy application on the target device. Please try to rebuild the solution and try again."
I feel this should indicate the issue of the iOS version of the device being lower than the Project Deployment Target. That said, double clicking on the error brings up a dialog that does contain the following text:
error MT1006: Could not install the application 'path/to/app' on the device iPhone 4: The 'MinimumOSVersion' inside Info.plist does not include the device version (error: 0xe800007e).
but it seems this would best be indicated in the errors pane directly to make it more obvious.
A better error message is shown:
Severity Code Description Project File Line
Error error MT1006: Could not install the application '/Users/enzo/Library/Caches/Xamarin/mtbs/builds/Phoneword_iOS/9c9651e1e2800753712650bd3ddd3852/bin/iPhone/Debug/Phoneword_iOS.app' on the device Visual's+ iPhone: The 'MinimumOSVersion' inside Info.plist does not include the device version (error: 0xe800007e). 0
Please verify in alpha or latest master build
Yes, the better error message is now displayed in the Error List pane, hence marking as Verified.
I know this is a bit old but the latest version of Xamarin.ios does error with "Launch failed. The app 'MJEMobile.iOS' could not be launched on 'Mitchell’s iPhone'. Error: error MT1006: Could not install the application '/Users/mitch/Library/Caches/Xamarin/mtbs/builds/MJEMobile.iOS/590cde193fb8cc2a5b449cbea92c5267/bin/iPhone/Debug/device-builds/iphone9.2-11.0.3/MJEMobile.iOS.app' on the device 'Mitchell’s iPhone': The 'MinimumOSVersion' inside Info.plist does not include the device version (error: 0xe800007e)." but does not actually list as an error..
not sure if this is a bug regression or not
I see this listed as an error in Visual Studio 15.4.3. It would be best to file a new issue via the Help > Report a Problem menu from within Visual Studio with the details of what you are noticing. I'll attach an image of what I see to confirm.
Created attachment 25675 [details]
Screenshot of Error
Here is an image of the Error listed as I see it.