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Minimum Versions

Visual Studio Minimums

Visual Studio 2019 and beyond.

Platform Minimums

ReactiveUI has the following minimum platform requirements:

Platform Minimum
.Net Framework 4.6.1
.Net Standard 2.0
.Net Core 3.1
.Net 5.0
UWP 10.0.16299.0
Xamarin Android 11.0
Xamarin iOS 1.0
Xamarin Mac 2.0
Xamarin TVOS 1.0
Tizen 4.0

Android Minimums

Android 11.0 is the minimum, with SDK 30.

Make sure your AndroidManifest.xml has SDK 30 as the target SDK.

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="" android:versionCode="1" android:versionName="1.0" package="com.giusepe.SextantSample" android:installLocation="auto">
+	<uses-sdk android:minSdkVersion="19" android:targetSdkVersion="30" />
 	<application android:label="SextantSample.Android"></application>

Also that your CSPROJ references Android 11.0.