openra error

Tiberian Sun Mod at Version {DEV_VERSION}
Date: 2017-03-28 16:40:26Z
Operating System: Windows (Microsoft Windows NT 6.1.7601 Service Pack 1)
Runtime Version: .NET CLR 4.0.30319.42000
Exception of type `System.AggregateException`: One or more errors occurred.
Inner
  Exception of type `System.InvalidOperationException`: Cannot locate type: ChangeOwnerWarhead
     at OpenRA.ObjectCreator.<MissingTypeAction>m__6(String s)
   at OpenRA.ObjectCreator.CreateObject[T](String className, Dictionary`2 args)
   at OpenRA.ObjectCreator.CreateObject[T](String className)
   at OpenRA.Game.CreateObject[T](String name)
   at OpenRA.GameRules.WeaponInfo.LoadWarheads(MiniYaml yaml)
   at OpenRA.FieldLoader.Load(Object self, MiniYaml my)
   at OpenRA.GameRules.WeaponInfo..ctor(String name, MiniYaml content)
   at OpenRA.Ruleset.<LoadDefaults>c__AnonStorey0.<>m__2(MiniYamlNode k)
   at OpenRA.Exts.ToDictionaryWithConflictLog[TSource,TKey,TElement](IEnumerable`1 source, Func`2 keySelector, Func`2 elementSelector, String debugName, Func`2 logKey, Func`2 logValue)
   at OpenRA.Ruleset.MergeOrDefault[T](String name, IReadOnlyFileSystem fileSystem, IEnumerable`1 files, MiniYaml additional, IReadOnlyDictionary`2 defaults, Func`2 makeObject)
   at OpenRA.Ruleset.<LoadDefaults>c__AnonStorey0.<>m__0()
   at System.Threading.Tasks.Task.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at OpenRA.Ruleset.LoadDefaults(ModData modData)
   at OpenRA.ModData.<ModData>m__2()
   at System.Lazy`1.CreateValue()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Lazy`1.get_Value()
   at OpenRA.ModData.get_DefaultRules()
   at OpenRA.Ruleset.LoadDefaultsForTileSet(ModData modData, String tileSet)
   at OpenRA.Map.PostInit()
   at OpenRA.Map..ctor(ModData modData, IReadOnlyPackage package)
   at OpenRA.ModData.PrepareMap(String uid)
   at OpenRA.Game.StartGame(String mapUID, WorldType type)
   at OpenRA.Game.LoadShellMap()
   at OpenRA.Mods.Common.LoadScreens.BlankLoadScreen.StartGame(Arguments args)
   at OpenRA.Game.InitializeMod(String mod, Arguments args)
   at OpenRA.Mods.Common.Widgets.Logic.ModBrowserLogic.<LoadMod>c__AnonStorey2.<>m__1()
   at OpenRA.Primitives.ActionQueue.PerformActions(Int64 currentTime)
   at OpenRA.Game.LogicTick()
   at OpenRA.Game.Loop()
   at OpenRA.Game.Run()
   at OpenRA.Program.Run(String[] args)
   at OpenRA.Program.Main(String[] args)