cordova-uglify: js files have content undefined

Hi, when I try uglify, it overwrites all .js files, but they contet is only one single word “undefined”.

stripped debug log: cordova -d prepare

No scripts found for hook "before_prepare".
Checking config.xml and package.json for saved platforms that haven't been added to the project
Config.xml and package.json platforms are the same. No pkg.json modification.
Package.json and config.xml platforms are different. Updating config.xml with most current list of platforms.
Failed to require PlatformApi instance for platform "browser". Using polyfill instead.
Checking config.xml for saved plugins that haven't been added to the project
Checking for any plugins added to the project that have not been installed in browser platform
No differences found between plugins added to project and installed in browser platform. Continuing...
Generating config.xml from defaults for platform "browser"
Executing script found in hooks directory for hook "after_prepare": hooks\after_prepare\uglify.js
Running command: "C:\Program Files\nodejs\node.exe" D:\NetBeansProjects\ReturnReporting\hooks\after_prepare\uglify.js D:\NetBeansProjects\ReturnReporting
processFiles err: Error: ENOENT: no such file or directory, scandir 'D:\NetBeansProjects\ReturnReporting\platforms\browser\www\module'
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\controller\BaseController.js
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\controller\Home.controller.js
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\controller\Login.controller.js
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\controller\Settings.controller.js
minifying css file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\css\style.css
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\Component.js
encountered a .xml file, not compressing it
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\confighelper.js
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\controller\App.controller.js
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\cordova.js
uglifying js file D:\NetBeansProjects\ReturnReporting\platforms\browser\www\exec.js
encountered a .html file, not compressing it
encountered a .json file, not compressing it

full debug log: uglify_debug.txt

uglify installed from npm

{ name: 'cordova-uglify',
 description: 'Cordova hook that allows you to uglify or minify your apps JavaScript and CSS.',
 'dist-tags': { latest: '0.2.8' },
 versions: 
  [ '0.0.1',
    '0.0.2',
    '0.0.3',
    '0.0.4',
    '0.0.5',
    '0.0.6',
    '0.0.7',
    '0.0.8',
    '0.0.9',
    '0.1.0',
    '0.1.1',
    '0.1.2',
    '0.1.3',
    '0.1.4',
    '0.1.5',
    '0.1.6',
    '0.1.7',
    '0.1.8',
    '0.1.9',
    '0.2.0',
    '0.2.1',
    '0.2.2',
    '0.2.3',
    '0.2.4',
    '0.2.5',
    '0.2.6',
    '0.2.7',
    '0.2.8' ],
 maintainers: [ 'rossmartin <rmartin311@gmail.com>' ],
 time: 
  { modified: '2017-01-19T15:51:35.841Z',
    created: '2014-06-18T03:56:05.284Z',
    '0.0.1': '2014-06-18T03:56:05.284Z',
    '0.0.2': '2014-06-18T05:35:27.107Z',
    '0.0.3': '2014-06-18T05:42:27.368Z',
    '0.0.4': '2014-06-18T05:49:43.994Z',
    '0.0.5': '2014-06-18T05:52:58.761Z',
    '0.0.6': '2014-06-19T05:21:03.197Z',
    '0.0.7': '2014-06-22T22:23:42.514Z',
    '0.0.8': '2014-06-23T00:22:46.231Z',
    '0.0.9': '2014-11-12T05:09:29.435Z',
    '0.1.0': '2014-11-12T05:14:26.594Z',
    '0.1.1': '2014-11-12T05:24:53.626Z',
    '0.1.2': '2014-12-19T15:56:15.972Z',
    '0.1.3': '2014-12-19T16:12:12.345Z',
    '0.1.4': '2015-01-12T22:09:19.752Z',
    '0.1.5': '2015-04-09T20:55:45.840Z',
    '0.1.6': '2015-06-22T14:47:17.993Z',
    '0.1.7': '2015-07-11T02:08:10.764Z',
    '0.1.8': '2015-07-11T02:31:39.325Z',
    '0.1.9': '2015-08-03T21:01:21.157Z',
    '0.2.0': '2015-09-30T13:38:50.084Z',
    '0.2.1': '2015-10-03T16:06:54.283Z',
    '0.2.2': '2015-12-13T22:54:54.170Z',
    '0.2.3': '2015-12-16T01:08:51.901Z',
    '0.2.4': '2016-07-15T15:12:03.110Z',
    '0.2.5': '2016-09-11T17:32:27.083Z',
    '0.2.6': '2016-10-24T14:35:28.131Z',
    '0.2.7': '2016-11-27T04:43:01.635Z',
    '0.2.8': '2017-01-19T15:51:35.841Z' },
 homepage: 'https://github.com/rossmartin/cordova-uglify',
 keywords: [ 'cordova', 'uglify', 'minify', 'hook', 'hooks' ],
 author: 'Ross Martin',
 bugs: { url: 'https://github.com/rossmartin/cordova-uglify/issues' },
 license: 'MIT',
 readmeFilename: 'README.md',
 repository: 
  { type: 'git',
    url: 'git+https://github.com/rossmartin/cordova-uglify.git' },
 users: 
  { okmogwai: true,
    batosai: true,
    cnring18: true,
    gdevise: true,
    ebbm: true },
 version: '0.2.8',
 dependencies: 
  { 'clean-css': '3.4.8',
    'ng-annotate': '0.15.4',
    shelljs: '^0.7.0',
    'uglify-js': '2.4.14' },
 scripts: 
  { postinstall: 'node scripts/install.js',
    postuninstall: 'node scripts/uninstall.js' },
 gitHead: '395775651d1b3a5f3625e4fa3d3ec2ca823664b1',
 dist: 
  { shasum: '5aa9f69797da4c9d51c2f5184f4dcf0510d1b327',
    tarball: 'https://registry.npmjs.org/cordova-uglify/-/cordova-uglify-0.2.8.tgz' },
 directories: {} }