正在运行的任务未在grunt config中提及

Question

我已经为咕unt声创建了一个丑陋的任务。哪个工作正常。但是，一旦使用提到的文件完成操作，该文件就会自动触发另一个任务，而我在任何地方都没有提到过。并且其中包含ES6语法。所以我跳过了那些文件。但是uglify的运行情况相同，

uglify: {
    build: {
        src: [
            '<%= yeoman.dist %>/scripts/vendor/modernizr/*.js',
            '<%= yeoman.dist %>/scripts/vendor/jquery/jquery.js',
            '<%= yeoman.dist %>/scripts/vendor/spin.js/*.js',
            '<%= yeoman.dist %>/scripts/vendor/socket.io-client/socket.io.js',
            '<%= yeoman.dist %>/scripts/vendor/codemirror/*.js',
            '<%= yeoman.dist %>/scripts/vendor/diff_match_patch/*.js',
            '<%= yeoman.dist %>/scripts/vendor/masonry.pkgd.js'
        ],
        dest: '<%= yeoman.dist %>/scripts/vendors.js'
    }
}

grunt.registerTask('build', [
    'clean:dist',
    'babel:dist',
    'copy:scripts',
    'htmlmin:dust',
    'dustjs',
    'useminPrepare',
    'htmlmin:dist',
    'requirejs',
    'uglify',
    'rev'
]);

错误

Running "uglify:build" (uglify) task
>> 1 file created 1.02 MB → 395.3 kB

Running "uglify:dist\scripts\main.js" (uglify) task
{ [SyntaxError: Unexpected token: name (sortFieldsKey)
  at JS_Parse_Error.get (<anonymous>:71:23)