here is my error any ideas guysss???
System.MissingMethodException: Method not found: 'Int32 System.Environment.get_CurrentManagedThreadId()'.
at Iros._7th.Workshop.ConfigSettings.Settings.<GetOutput>d__6..ctor(Int32 <>1__state)
at Iros._7th.Workshop.ConfigSettings.Settings.GetOutput()
at Iros._7th.Workshop.fConfigSettings.bOK_Click(Object sender, EventArgs e) in C:\Code\7H\7thWorkshop\fConfigSettings.cs:line 49
at System.Windows.Forms.Control.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnClick(EventArgs e)
at System.Windows.Forms.Button.OnMouseUp(MouseEventArgs mevent)
at System.Windows.Forms.Control.WmMouseUp(Message& m, MouseButtons button, Int32 clicks)
at System.Windows.Forms.Control.WndProc(Message& m)
at System.Windows.Forms.ButtonBase.WndProc(Message& m)
at System.Windows.Forms.Button.WndProc(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)