In order to get my Maui app to work on existing Android phones, I added the following to my .csproj file:
<RuntimeIdentifiers>android-arm;android-arm64;android-x86;android-x64</RuntimeIdentifiers>
This is correct according to this page. However, when I attempt to publish my app, I get the following compilation error:
The RuntimeIdentifier ‘android-arm’ is invalid.
This page insists that android-arm is a valid RID. I double-checked the command dotnet workload list and I have both android and maui-android workloads installed.
How do I fix this error and publish my Maui app?
I figured it out. The line in the .csproj needs to look like this:
<RuntimeIdentifiers Condition="$([MSBuild]::GetTargetPlatformIdentifier('$(TargetFramework)')) == 'android'">android-arm;android-arm64;android-x86;android-x64</RuntimeIdentifiers>
I have no idea why this would fix it. I was not attempting to build the iOS release, and even if I was, I don't know why iOS would know about android-x86 but not android-arm, nor why iOS not knowing about something would stop it from being included in the Android release. Welcome to Maui 🤷