TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeInitializationException: The type initializer for 'Ephere.Utilities.Evaluator' threw an exception. ---> System.IO.IOException: The process cannot access the file 'C:\Users\PaccoAdmin\AppData\Local\Temp\feylwyuv.dll' because it is being used by another process.
   at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share, Int32 bufferSize, FileOptions options, String msgPath, Boolean bFromProxy)
   at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
   at Microsoft.JScript.JSCodeGenerator.FromFileBatch(CompilerParameters options, String[] fileNames)
   at System.CodeDom.Compiler.CodeCompiler.FromSourceBatch(CompilerParameters options, String[] sources)
   at System.CodeDom.Compiler.CodeCompiler.System.CodeDom.Compiler.ICodeCompiler.CompileAssemblyFromSourceBatch(CompilerParameters options, String[] sources)
   at Ephere.Utilities.Evaluator..cctor()
   --- End of inner exception stack trace ---
   at Ephere.Utilities.Evaluator.EvalToDouble(String statement)
   at Ephere.Gui.NodeViews.Skin.Area.GetLeftValue(Dictionary`2 parameterValues)
   at Ephere.Gui.NodeViews.NodeView.Node.LayoutNodes()
   at Ephere.Gui.NodeViews.Schematic.ValueNode.LayoutNodes()
   at Ephere.Gui.NodeViews.Schematic.InternalInputsNode.LayoutNodes()
   at Ephere.Gui.NodeViews.Skin.SetBoilerPlateSchematicView(Schematic view)
   at Ephere.Gui.NodeViews.Skin.get_Default()
   at Autodesk.Max.StateSets.Plugin..ctor()
   --- End of inner exception stack trace ---
   at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandleInternal& ctor, Boolean& bNeedSecurityCheck)
   at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
   at System.RuntimeType.CreateInstanceDefaultCtor(Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, StackCrawlMark& stackMark)
   at System.Activator.CreateInstance(Type type, Boolean nonPublic)
   at System.Activator.CreateInstance(Type type)
   at Autodesk.Max.Manager.LoadAssembly(String name, Boolean startingUp)
   at Autodesk.Max.Manager.LoadAssemblies()