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Known issues in .NET10

Rolf Bjarne Kvinge edited this page May 15, 2025 · 2 revisions

This document lists known issues in the SDKs.

Can't run mobile app from the command line on Windows

It's currently not possible to run a mobile app (iOS, tvOS) on Windows using the command line. Please use an IDE to launch apps from Windows.

Ref: https://github.com/xamarin/xamarin-macios/issues/16609

Selecting the simulator architecture remotely from Windows

When:

  • Building remotely from Visual Studio (on Windows).
  • Building for the simulator.
  • The remote mac is an ARM64 machine.

Visual Studio will build using the iossimulator-arm64 RuntimeIdentifier.

For some projects this may not work correctly (in particular projects that depend on third-party native libraries that don't provide an iossimulator-arm64 version of their library), and for those cases it's possible to make Visual Studio build using iossimulator-x64 instead, by setting the following property in the project file:

<PropertyGroup>
  <ForceSimulatorX64ArchitectureInIDE>true</ForceSimulatorX64ArchitectureInIDE>
</PropertyGroup>

This is supported starting in Visual Studio 17.7 preview 3.

The build fails with "No simulator runtime version from ..."

If the build fails with an error like this:

No simulator runtime version from [<DVTBuildVersion 21C62>, <DVTBuildVersion 21E213>, <DVTBuildVersion 21F79>] available to use with iphonesimulator SDK version <DVTBuildVersion 22A3362>

or:

The operation couldn't be completed. Failed to locate any simulator runtime matching options: { ... }

Then the problem is that the necessary iOS platform support isn't installed on the macOS machine.

The fix is to open Xcode, go to the menu "Xcode (top left) -> Settings -> Components", and make sure the platform component for the latest iOS version is installed (iOS 18 in this case, in Xcode 16.0):

References:

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