Prime31 azure plugin can't build

I've tried to use prime31 Azure Plugin for Windows on Unity5 , but when i try to build i recive this error:

 ArgumentException: The Assembly Microsoft.WindowsAzure.MobileServices.Managed is referenced by P31MetroAzure ('Assets/Plugins/Metro/P31MetroAzure.dll'). But the dll is not allowed to be included or could not be found.
 UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List`1 alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary`2 cache, BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:160)
 UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List`1 alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary`2 cache, BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:166)
 UnityEditor.AssemblyHelper.FindAssembliesReferencedBy (System.String[] paths, System.String[] foldersToSearch, BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:198)
 UnityEditor.HostView:OnGUI()

Enviroment:

Azure SDK 2.5.1 installed , Unity5 , VS2013 Update 4, Windows 8.1

Plugin configuration:

Files:

P31MetroAzure Import Settings:

P31RestKit Import Settings:

• Don't Process = false

• Placeholder = Assets/Plugins/P31RestKit.dll