I am trying to use a Configurable Joint to constrain movement around the Z axis and have it configured exactly as per the 2D Gameplay Tutorial.pdf:
XMotion - Free
YMotion - Free
ZMotion - Locked
Angular XMotion - Locked
Angular YMotion - Locked
Angular ZMotion - Free
Configured in World Space - enabled
When I first run the game in Unity, it shows the following exception in the Console Log:
InvalidOperationException: Operation is not valid due to the current state of the object
System.Collections.Stack.Peek ()
UnityEngine.GUIClip.Unclip (Vector2 pos)
UnityEngine.GUIUtility.GUIToScreenPoint (Vector2 guiPoint)
UnityEditor.EditorUtility.DisplayCustomMenu (Rect position, System.String[ ] options, System.Boolean[ ] enabled, System.Int32[ ] selected, UnityEditor.SelectMenuItemFunction callback, System.Object userData) [0x00000] (at /Users/build/builds/unity-trunk/unity/Editor/Mono/Generated/Utility.cs:233)
UnityEditor.PaneMenu.DropDown (Rect position) (at /Users/build/builds/unity-trunk/unity/Editor/Mono/GUI/DockArea.cs:994)
UnityEditor.BaseProjectWindow.HierarchyView () (at /Users/build/builds/unity-trunk/unity/Editor/Mono/ProjectWindow/ProjectWindow.cs:647)
UnityEditor.BaseProjectWindow.OnGUI () (at /Users/build/builds/unity-trunk/unity/Editor/Mono/ProjectWindow/ProjectWindow.cs:311)
System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[ ] parameters, System.Globalization.CultureInfo culture) [0x00000]
Also attached to my prefab object is a Rigibody and an Animation Component (though I have no animation setup). The RigiBody is set with the following:
Mass 1
Drag 0.5
Angular Drag 0.05
Use Gravity - true
Is Kinematic - false
Interpolate - none
Freeze rotation - false
The code does work and the prefab object behaves exactly as I expect, but it is throwing this exception that has me concerned.
Thanks
