javascript - issue using plugin in phonegap -

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I'm trying to write ios in html; Javascript which can scan the code once using the phonegap build. I've added the following line in the PhoneGrap config.xml for the barcode reader plugin:

& lt; Difference: Plugin name = "com.phonegap.plugins.barcodescanner" version = "1.1.0" />

I have the following code from the plugin example in the listener for a button: 

  cordova.plugins.barcodeScanner.scan (function (result) {warning ("us a Barcode found \ n "+" Result: "+ result.text +" \ n "+" format: "+ result. +" \ N "+" has been canceled: "+ result canceled);} , Function (error) {warning ("scanning failed:" + error);});   
 When I try to run the app and press the scan button I get the following error:  
 "Variable can not be found: Cordova" / P> 
 Any help that I am missing will be highly appreciated. Thanks   
 
 
 I found a solution to my problem Html file as file cordova.js Type script = " Text / javascript "src =" cordova.js "& gt;  
 Thanks      HTML>

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