title: Gulp-uglify : throw er; // Unhandled 'error' event
body: <p>i'm pretty new to gulp , and I follow tutorials in <a href="http://leveluptuts.com/tutorials/learning-gulp" rel="noreferrer">http://leveluptuts.com/tutorials/learning-gulp</a> , I get this error:</p>
  
  <pre><code>events.js:141
    throw er; // Unhandled 'error' event
    ^
  Error
  at new JS_Parse_Error (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:196:18)
  at js_error (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:204:11)
  at croak (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:680:9)
  at token_error (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:688:9)
  at unexpected (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:694:9)
  at expr_atom (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:1201:9)
  at maybe_unary (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:1363:19)
  at expr_ops (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:1398:24)
  at maybe_conditional (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:1403:20)
  at maybe_assign (/home/kid/node_modules/gulp-uglify/node_modules/uglify-js/lib/parse.js:1427:20)
  </code></pre>
  
  <p>here is my code :</p>
  
  <pre><code> var gulp = require('gulp')
      uglify = require('gulp-uglify');
  
  gulp.task('default', function() {
      // body...
      gulp.src('js/*.js')
      .pipe(uglify())
      .pipe(gulp.dest('minjs'));
  
  });
  </code></pre>
  
  <p>and the tree of directory, just simple </p>
  
  <pre><code>-gulp
       -js/
       -gulpfile.js
  </code></pre>
  
  <p>thanks a lot</p>