Root level exception in OnGUI(): System.MissingMethodException: string Verse.ModMetaData.get_Identifier()
  at System.Linq.Enumerable.Any[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Func`2[T,TResult] predicate) [0x0002c] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at ModManager.Extensions.LoadOrder (Verse.ModMetaData mod) [0x00028] in <52a3aab51c21441d947109f80f9b2b09>:0
  at ModManager.ModButton_Installed.get_LoadOrder () [0x00010] in <52a3aab51c21441d947109f80f9b2b09>:0
  at ModManager.ModButtonManager+<>c.<SortActive>b__23_0 (ModManager.ModButton b) [0x00000] in <52a3aab51c21441d947109f80f9b2b09>:0
  at System.Linq.EnumerableSorter`2[TElement,TKey].ComputeKeys (TElement[] elements, System.Int32 count) [0x00010] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.EnumerableSorter`1[TElement].ComputeMap (TElement[] elements, System.Int32 count) [0x00000] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.EnumerableSorter`1[TElement].Sort (TElement[] elements, System.Int32 count) [0x00000] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.OrderedEnumerable`1[TElement].SortedMap (System.Linq.Buffer`1[TElement] buffer) [0x00006] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.OrderedEnumerable`1[TElement].ToList () [0x0001f] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at System.Linq.Enumerable.ToList[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x0001f] in <351e49e2a5bf4fd6beabb458ce2255f3>:0
  at ModManager.ModButtonManager.SortActive () [0x00029] in <52a3aab51c21441d947109f80f9b2b09>:0
  at ModManager.ModButtonManager.RecacheModButtons () [0x00074] in <52a3aab51c21441d947109f80f9b2b09>:0
  at ModManager.Page_BetterModConfig.PreOpen () [0x00012] in <52a3aab51c21441d947109f80f9b2b09>:0
  at Verse.WindowStack.Add (Verse.Window window) [0x0001f] in <33b99ab6cf5748ec8fe371b3321b9db6>:0
  at ModManager.Patch_Replace_Page_ModsConfig.OpenModsConfig () [0x0000a] in <52a3aab51c21441d947109f80f9b2b09>:0
  at Verse.ListableOption.DrawOption (UnityEngine.Vector2 pos, System.Single width) [0x00040] in <33b99ab6cf5748ec8fe371b3321b9db6>:0
  at Verse.OptionListingUtility.DrawOptionListing (UnityEngine.Rect rect, System.Collections.Generic.List`1[T] optList) [0x00037] in <33b99ab6cf5748ec8fe371b3321b9db6>:0
  at (wrapper dynamic-method) RimWorld.MainMenuDrawer.DoMainMenuControls_Patch0(UnityEngine.Rect,bool)
  at RimWorld.MainMenuDrawer.MainMenuOnGUI () [0x00242] in <33b99ab6cf5748ec8fe371b3321b9db6>:0
  at Verse.UIRoot_Entry.DoMainMenu () [0x0001f] in <33b99ab6cf5748ec8fe371b3321b9db6>:0
  at Verse.UIRoot_Entry.UIRootOnGUI () [0x0001c] in <33b99ab6cf5748ec8fe371b3321b9db6>:0
  at Verse.Root.OnGUI () [0x0003d] in <33b99ab6cf5748ec8fe371b3321b9db6>:0
Verse.Log:Error(String, Boolean)
Verse.Root:OnGUI()