Resize script error

var idopen = stringIDToTypeID( "open" );
      var desc237 = new ActionDescriptor();
      var iddontRecord = stringIDToTypeID( "dontRecord" );
      desc237.putBoolean( iddontRecord, false );
      var idforceNotify = stringIDToTypeID( "forceNotify" );
      desc237.putBoolean( idforceNotify, true );
      var idnull = stringIDToTypeID( "null" );
      desc237.putPath( idnull, new File('/'+fp) );
      var iddocumentID = stringIDToTypeID( "documentID" );
      desc237.putInteger( iddocumentID, i );
      var idtemplate = stringIDToTypeID( "template" );
      desc237.putBoolean( idtemplate, false );
      executeAction( idopen, desc237, DialogModes.NO );

      var idimageSize = stringIDToTypeID( "imageSize" );
      var desc736 = new ActionDescriptor();
      var idwidth = stringIDToTypeID( "width" );
      var iddistanceUnit = stringIDToTypeID( "distanceUnit" );
      desc736.putUnitDouble( idwidth, iddistanceUnit, 200);
      var idscaleStyles = stringIDToTypeID( "scaleStyles" );
      desc736.putBoolean( idscaleStyles, true );
      var idconstrainProportions = stringIDToTypeID( "constrainProportions" );
      desc736.putBoolean( idconstrainProportions, true );
      var idinterfaceIconFrameDimmed = stringIDToTypeID( "interfaceIconFrameDimmed" );
      var idinterpolationType = stringIDToTypeID( "interpolationType" );
      var idautomaticInterpolation = stringIDToTypeID( "automaticInterpolation" );
      desc736.putEnumerated( idinterfaceIconFrameDimmed, idinterpolationType, idautomaticInterpolation );
     executeAction( idimageSize, desc736, DialogModes.NO );

     var idsave = stringIDToTypeID( "save" );
     var desc894 = new ActionDescriptor();
     var idin = stringIDToTypeID( "in" );
     desc894.putPath( idin, new File( app.activeDocument.fullName ) );
     var idsaveStage = stringIDToTypeID( "saveStage" );
     var idsaveStageType = stringIDToTypeID( "saveStageType" );
     var idsaveBegin = stringIDToTypeID( "saveBegin" );
     desc894.putEnumerated( idsaveStage, idsaveStageType, idsaveBegin );
     var iddocumentID = stringIDToTypeID( "documentID" );
     desc894.putInteger( iddocumentID, i);
 executeAction( idsave, desc894, DialogModes.NO );