Fixing Visual Studio 2015 Android Designer with Xamarin
While using Visual Studio 2015 to edit and android layout file ( axml ) I got this error: The installed Android SDK is too old. Version 24.3.4 or newer is required The number version might be different in your case. Here are a few possible causes for the error: 1) You actually need to upgrade your Android SDK. 2) You have the wrong path for the Android SDK installation on Visual Studio. (change it on Tools->Options->Xamarin) 3) Mixed Xamarin extensions (this was my case) After reinstalling the Android SDK and checking the everything was fine on that part I went to check on Visual Studio extensions ( Tools -> Extensions and Updates ). It turns out that I caused a mix up of versions, since I already had Xamarin and Visual Studio 2013 side by side. and now 2015 had another one, my Visual Studio 2015 ended up with 2 extensions for Xamarin. Disabling one of them solved the problem and the designer was working again. The one that I disabled was titled "Get