change all (TEXT ) layers color for multi *.psd's

hi guys..

I have a folder containing a lot of ( *.PSD files )

i need change all ( TEXT ) layers color for all thess *.PSD

just ( TEXT ) layers

i searched and i get this code and it's not work i have error message

#target photoshop;

main();

function main(){

//select folder where PSDs are held

var selectFolder = Folder.selectDialog( "Please select folder of PSDs");

//if no folder selected quit.

if(selectFolder == null) return;

//get an array of all PSDs in the folder

var fileList = selectFolder.getFiles("*.psd");

//iterate through file list

for(var a in fileList){

var textColour = new SolidColor();

textColour.rgb.hexValue = "00ff00"; //set colour to green

open(fileList);

activeDocument.activeLayer = activeDocument.artLayers[0];  //Select top layer

if(activeDocument.activeLayer.kind == LayerKind.TEXT){ //check if it is a text layer

activeDocument.activeLayer.textItem.color = textColour; //set text to colour

activeDocument.save(); //Save changes

activeDocument.close(SaveOptions.DONOTSAVECHANGES); //Close document

}else{//not a text layer so close document

 activeDocument.close(SaveOptions.DONOTSAVECHANGES); //Close document

 }

}//end of filelist

};

when i run scrpit and choose folder i get this error

this line 27

please help me