I have a novice question. When using KODA editor, it generated the following code: #include <GUIConstants.au3> #Region ### START Koda GUI section ### Form= $Form1 = GUICreate("Form1", 542, 319, 209, 110, $WS_POPUP, 0) $no = GUICtrlCreateEdit("", 56, 16, 433, 241) GUICtrlSetData(-1, "no") GUISetState(@SW_SHOW) #EndRegion ### END Koda GUI section ### While 1 $nMsg = GUIGetMsg() Switch $nMsg Case $GUI_EVENT_CLOSE Exit Case $Form1 EndSwitch WEnd I tried to run this piece of code but experience an error: How can one fix the problem? Should any one file except <GUIConstants.au3> be included? Thanks.