Barcode Scanner working in dev, not built apps

While developing (serving locally and viewing on the Tabris developer app) my app’s barcode scanner works fine. For both iOS and Android.

However, when I build and deploy (with or without debug mode enabled) to my devices, the barcode scanner does not work.

This is the error message in the debug console:

undefined is not an object (evaluating 'cordova.plugins.barcodeScanner')

I have 2 cordova plugins registered in cordova/config.xml like so:

<plugin name="cordova-plugin-barcodescanner" spec="6.0.5" />
<plugin name="cordova-plugin-x-toast" spec="2.5.2" />

See also #1088 for how I determined version/spec

The toast plugin is working fine. The code to trigger to barcode scanner is based on the Tabris examples, here is my implementation:

var ScanProductPage = function () {

  this.page = new tabris.Page({
    id: 'scanProductPage',
    title: "Scan Product",
    image: './assets/icons/barcode.png',
    topLevel: true
  });

  new tabris.Button({
    layoutData: {left: 10, top: 10, right: 10},
    text: "Scan Barcode"
  }).on("select", scanBarcode).appendTo(this.page);

  var resultView = new tabris.TextView({
    layoutData: {top: "prev() 20", left: 20, right: 20},
    markupEnabled: true
  }).appendTo(this.page);

  function scanBarcode() {
    cordova.plugins.barcodeScanner.scan(function (result) {
        resultView.set("text", result.cancelled ?
          "<b>Scan cancelled</b>" :
          "<b>Scan result:</b> " + result.text + " (" + result.format + ")");
      }, function (error) {
        resultView.set("text", "<b>Error:</b> " + error);
      },
      {
        preferFrontCamera : false,
        showFlipCameraButton : true,
        showTorchButton : true,
        prompt : "Place a barcode inside the scan area"
      });
  }

};

module.exports = ScanProductPage;

I tried rolling back to an earlier version of the barcodescanner plugin (6.0.3) to no avail.

[cookieguru]

I agree-my vote would be to fail the build if a plugin can’t be downloaded.

According to the Cordova spec the spec attribute is required but will defer to “the latest plugin version published to npm” if it can’t figure out the version based on other criteria. I just learned it’ll also take semver strings, so that’s pretty cool.

[cpetrov]

@camstuart @cookieguru Thanks for the input! I’ve opened #1148 and am closing this issue.