UWP failing to build

Hi, I’m using Unity 2017.1.0f3 and the latest Cinemachine from the asset store.

After creating a new project and importing Cinemachine, if try and build to UWP I get the following errors causing the build to fail -

Assets\Cinemachine\Blackboard\Reactor.cs(284,45): error CS1061: 'Type' does not contain a definition for 'IsSubclassOf' and no extension method 'IsSubclassOf' accepting a first argument of type 'Type' could be found (are you missing a using directive or an assembly reference?)


Assets\Cinemachine\Blackboard\Reactor.cs(285,45): error CS1061: 'Type' does not contain a definition for 'IsSubclassOf' and no extension method 'IsSubclassOf' accepting a first argument of type 'Type' could be found (are you missing a using directive or an assembly reference?)


Assets\Cinemachine\Blackboard\Reactor.cs(314,67): error CS1061: 'Type' does not contain a definition for 'IsSubclassOf' and no extension method 'IsSubclassOf' accepting a first argument of type 'Type' could be found (are you missing a using directive or an assembly reference?)


Assets\Cinemachine\Base\Runtime\Core\ReflectionHelpers.cs(72,37): error CS0234: The type or namespace name 'AppDomain' does not exist in the namespace 'System' (are you missing an assembly reference?)


Assets\Cinemachine\Base\Runtime\Core\ReflectionHelpers.cs(88,37): error CS0234: The type or namespace name 'AppDomain' does not exist in the namespace 'System' (are you missing an assembly reference?)

UnityEditor.BuildPlayerWindow+BuildMethodException: Build failed with errors.
  at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (BuildPlayerOptions options) [0x001b9] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:162
  at UnityEditor.BuildPlayerWindow.CallBuildMethods (Boolean askForBuildLocation, BuildOptions defaultBuildOptions) [0x00050] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:83
UnityEditor.HostView:OnGUI()

Yes this is an issue with the current CM release.
See this post for the fix:
https://forum.unity3d.com/threads/new-cinemachine-v1-5.459352/page-4#post-3157330