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.NET for Android warning XA1024

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Example messages

warning XA1024: Ignoring configuration file 'Foo.dll.config'. .NET configuration files are not supported in .NET for Android projects that target .NET 6 or higher.

Issue

No support for configuration files such as Foo.dll.config or Foo.exe.config is available in .NET for Android projects. <dllmap> configuration elements are not supported in .NET 6 at all, and other element types for compatibility packages like System.Configuration.ConfigurationManager have never been supported in .NET for Android projects.

Solution

Use a supported alternative for <dllmap>, such as the NativeLibrary API.

Use an alternative for application settings such as Preferences in Xamarin.Essentials.