ARM64 only supported architecture available in Visual Studio

user_1503967 0
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We have a Xamarin project in Visual Studio. In the "Project Options", for "iOS Build", we would like to add the support for ARMv7s (even ARMv7 if possible).

But, in the "Supported architectures" dropdown, the only available value is ARM64.

We already tried to manually edit the .csproj file and set:

<MTouchArch>ARMv7s, ARM64</MTouchArch>

But the change does not reflect in the project.

Why can't we select these architectures, and how can we add support for older devices / OS ?

Here is how the window looks like:

Supported architectures

Versions information:

Visual Studio Community 2017 for Mac

Version 7.2.2 (build 7)

Runtime: Mono 5.4.1.6 (2017-06/1f4613aa1ac) (64-bit), GTK+ 2.24.23 (Raleigh theme), Package version: 504010006

Apple Developer Tools

Xcode 9.1 (13532), Build 9B55

Xamarin.iOS

Version: 11.2.1.0 (Visual Studio Community)

Operating System

Mac OS X 10.12.6

xamarin xamarin.ios visual-studio ios
1 Answers

The issue was that the Minimum system version (MinimumOSVersion) in the Info.plist file had somehow been set to iOS 11, rather than iOS 9. Therefore, the only available architecture available is ARM64.

Lowering it back to iOS 9 solved the issue and enabled the ARMv7, ARMv7s and ARM64 entry in the dropdown.

user_15039670
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