Android SDK Tools (rev. 24.3.4) breaks Xamarin.Designer downgrade for Visual Studio

Problem:

Google has released a new version of Android SDK Tools (rev. 24.3.4). This version breaks the Xamarin.Android designer.

How to downgrade?

Downgrade steps

1. Close ALL instances of Visual Studio and/or Xamarin Studio
2. Locate the tools directory in the Android SDK path. One way to find the right directory is to open "Tools -> Open Android SDK Manager" in Xamarin Studio or "Tools -> Android -> Android SDK Manager" in Visual Studio. The tools subdirectory can be found within the "SDK Path" that is displayed at the top of the SDK Manager window.
3. Delete the tools directory.
4. Unzip the tools_r24.3.3*.zip file into the "SDK Path", creating a directory named "tools". Be careful not to create an extra outer "tools" directory when unzipping this file: the top-level "SDK path" should contain tools/android*, not tools/tools/android*.

Downgrade links

Windows

• https://dl-ssl.google.com/android/repository/tools_r24.3.3-windows.zip

Mac

• https://dl-ssl.google.com/android/repository/tools_r24.3.3-macosx.zip

Source:
http://forums.xamarin.com/discussion/48408/warning-android-sdk-tools-rev-v24-3-4#latest