I moved my project over to my OSX laptop, and now I get this error on repeat when I try to open the Playmaker Editor window
TypeLoadException: Could not resolve type with token 010000c3 from typeref (expected class 'UnityEditor.Experimental.SceneManagement.PrefabStage' in assembly 'UnityEditor, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null')
HutongGames.PlayMakerEditor.FsmEditor.OnEnable () (at C:/Projects/Playmaker_1.9.1/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/FsmEditor.cs:558)
HutongGames.PlayMakerEditor.FsmEditorWindow.Initialize () (at Assets/PlayMaker/Editor/FsmEditorWindow.cs:193)
HutongGames.PlayMakerEditor.BaseEditorWindow.OnGUI () (at C:/Projects/Playmaker_1.9.1/Projects/Playmaker.source.unity/Assets/PlayMaker/Editor/Classes/BaseEditorWindow.cs:131)
UnityEditor.HostView.InvokeOnGUI (UnityEngine.Rect onGUIPosition) (at /Users/bokken/build/output/unity/unity/Editor/Mono/HostView.cs:464)
UnityEditor.DockArea.DrawView (UnityEngine.Rect dockAreaRect) (at /Users/bokken/build/output/unity/unity/Editor/Mono/GUI/DockArea.cs:386)
UnityEditor.DockArea.OldOnGUI () (at /Users/bokken/build/output/unity/unity/Editor/Mono/GUI/DockArea.cs:377)
UnityEngine.UIElements.IMGUIContainer.DoOnGUI (UnityEngine.Event evt, UnityEngine.Matrix4x4 parentTransform, UnityEngine.Rect clippingRect, System.Boolean isComputingLayout, UnityEngine.Rect layoutSize, System.Action onGUIHandler, System.Boolean canAffectFocus) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs:372)
UnityEngine.UIElements.IMGUIContainer.HandleIMGUIEvent (UnityEngine.Event e, UnityEngine.Matrix4x4 worldTransform, UnityEngine.Rect clippingRect, System.Action onGUIHandler, System.Boolean canAffectFocus) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs:693)
UnityEngine.UIElements.IMGUIContainer.DoIMGUIRepaint () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/IMGUIContainer.cs:553)
UnityEngine.UIElements.UIR.RenderChainCommand.ExecuteNonDrawMesh (UnityEngine.UIElements.UIR.DrawParams drawParams, System.Single pixelsPerPoint, System.Exception& immediateException) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Renderer/UIRenderer/UIRenderers.cs:131)
Rethrow as ImmediateModeException
UnityEngine.UIElements.UIR.RenderChain.Render () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Renderer/UIRRenderChain.cs:518)
UnityEngine.UIElements.UIRRepaintUpdater.Update () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Renderer/UIRRepaintUpdater.cs:79)
UnityEngine.UIElements.VisualTreeUpdater.UpdateVisualTreePhase (UnityEngine.UIElements.VisualTreeUpdatePhase phase) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/VisualTreeUpdater.cs:155)
UnityEngine.UIElements.Panel.UpdateForRepaint () (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Panel.cs:994)
UnityEngine.UIElements.Panel.Repaint (UnityEngine.Event e) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/Panel.cs:1046)
UnityEngine.UIElements.UIElementsUtility.DoDispatch (UnityEngine.UIElements.BaseVisualElementPanel panel) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/UIElementsUtility.cs:456)
UnityEngine.UIElements.UIElementsUtility.UnityEngine.UIElements.IUIElementsUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& eventHandled) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/UIElementsUtility.cs:211)
UnityEngine.UIElements.UIEventRegistration.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/UIElementsUtility.cs:74)
UnityEngine.UIElements.UIEventRegistration+<>c.<.cctor>b__1_2 (System.Int32 i, System.IntPtr ptr) (at /Users/bokken/build/output/unity/unity/ModuleOverrides/com.unity.ui/Core/UIElementsUtility.cs:28)
UnityEngine.GUIUtility.ProcessEvent (System.Int32 instanceID, System.IntPtr nativeEventPtr, System.Boolean& result) (at /Users/bokken/build/output/unity/unity/Modules/IMGUI/GUIUtility.cs:189)
