Grunt:jit Grunt:插件;量角器”;找不到任务

我是yeoman/grunt/bower的新手，我正在用建立一个angularjs项目

yo angular

我自己对gruntfile做了一些更改，最近我发现量角器非常有用，我想把它添加到我的项目中。我在网上遵循了很多说明（比如2年前通过Grunt将量角器与Yeoman集成在一起的说明），但我仍然无法正确安装量角器。

这是我的Gruntfile.js：（只显示了相关部件）

'use strict';
module.exports = function (grunt) {
  // Time how long tasks take. Can help when optimizing build times
  require('time-grunt')(grunt);
  // Automatically load required Grunt tasks
  require('jit-grunt')(grunt, {
    useminPrepare: 'grunt-usemin',
    ngtemplates: 'grunt-angular-templates',
    cdnify: 'grunt-google-cdn'
  });
  // Configurable paths for the application
  var appConfig = {
    app: require('./bower.json').appPath || 'app',
    dist: 'dist'
  };
  // Define the configuration for all the tasks
  grunt.initConfig({
    // Project settings
    yeoman: appConfig,
    ...
    ...
    // Automatically inject Bower components into the app
    wiredep: {
      app: {
        src: ['<%= yeoman.app %>/index.html'],
        ignorePath:  /'.'.'//
      },
      test: {
        devDependencies: true,
        src: '<%= karma.unit.configFile %>',
        ignorePath:  /'.'.'//,
        fileTypes:{
          js: {
            block: /((['s't]*)'/{2}'s*?bower:'s*?('S*))('n|'r|.)*?('/{2}'s*endbower)/gi,
              detect: {
                js: /'(.*'.js)'/gi
              },
              replace: {
                js: '''{{filePath}}'','
              }
            }
          }
      },
      sass: {
        src: ['<%= yeoman.app %>/styles/{,*/}*.{scss,sass}'],
        ignorePath: /('.'.'/){1,2}bower_components'//
      }
    }, 
    ...
    ...
    // Test settings
    karma: {
      unit: {
        configFile: 'test/karma.conf.js',
        singleRun: true
      }
    },
    protractor: {
      options: {
        keepalive: true,
        configFile: 'protractor.conf.js'
      },
      run: {}
    }
  });
  grunt.registerTask('serve', 'Compile then start a connect web server', function (target) {
    if (target === 'dist') {
      return grunt.task.run(['build', 'connect:dist:keepalive']);
    }
    grunt.task.run([
      'clean:server',
      'wiredep',
      'concurrent:server',
      'postcss:server',
      'connect:livereload',
      'watch'
    ]);
  });
  grunt.registerTask('test', [
    'clean:server',
    'wiredep',
    'concurrent:test',
    'postcss',
    'connect:test',
    'karma',
    'protractor:run'
  ]);
};

这是我的package.json:

{
  "name": "Website",
  "private": true,
  "devDependencies": {
    "autoprefixer-core": "^5.2.1",
    "compass": "^0.1.1",
    "grunt": "^0.4.5",
    "grunt-angular-templates": "^0.5.7",
    "grunt-concurrent": "^1.0.0",
    "grunt-contrib-clean": "^0.6.0",
    "grunt-contrib-compass": "^1.0.0",
    "grunt-contrib-concat": "^0.5.0",
    "grunt-contrib-connect": "^0.9.0",
    "grunt-contrib-copy": "^0.7.0",
    "grunt-contrib-cssmin": "^0.12.0",
    "grunt-contrib-htmlmin": "^0.4.0",
    "grunt-contrib-imagemin": "^1.0.0",
    "grunt-contrib-jshint": "^0.11.0",
    "grunt-contrib-uglify": "^0.7.0",
    "grunt-contrib-watch": "^0.6.1",
    "grunt-filerev": "^2.1.2",
    "grunt-google-cdn": "^0.4.3",
    "grunt-jscs": "^1.8.0",
    "grunt-karma": "^0.12.2",
    "grunt-newer": "^1.1.0",
    "grunt-ng-annotate": "^0.9.2",
    "grunt-postcss": "^0.5.5",
    "grunt-protractor-runner": "^3.0.0",
    "grunt-svgmin": "^2.0.0",
    "grunt-usemin": "^3.0.0",
    "grunt-wiredep": "^2.0.0",
    "jasmine-core": "^2.4.1",
    "jit-grunt": "^0.9.1",
    "jshint-stylish": "^1.0.0",
    "karma": "^0.13.22",
    "karma-jasmine": "^0.3.8",
    "karma-phantomjs-launcher": "^1.0.0",
    "karma2": "^0.13.22",
    "phantomjs-prebuilt": "^2.1.7",
    "protractor": "^3.0.0",
    "time-grunt": "^1.0.0"
  },
  "engines": {
    "node": ">=0.10.0"
  },
  "scripts": {
    "test": "karma start test/karma.conf.js",
    "install": "node node_modules/protractor/bin/webdriver-manager update"
  },
  "dependencies": {}
}

我使用了jit-grunt（现在是默认的），所以它会为我加载这些插件

我肯定已经安装了protractor和grunt-protractor-runner继我上面提到的帖子和其他来源，如protractor和grunt-protractor-runner的官方网站。在我的本地node_modules:中

$ ls node_modules/ | grep protractor
grunt-protractor-runner
protractor

但无论我做什么，我仍然会从咕哝中得到错误：

$ grunt protractor
jit-grunt: Plugin for the "protractor" task not found.
If you have installed the plugin already, please setting the static mapping.
See https://github.com/shootaroo/jit-grunt#static-mappings
Warning: Task "protractor" failed. Use --force to continue.

并运行咕哝测试：

$ grunt test
Running "clean:server" (clean) task
>> 1 path cleaned.
...
...
Running "karma:unit" (karma) task
01 05 2016 15:03:51.048:WARN [watcher]: Pattern 
01 05 2016 15:03:51.094:INFO [karma]: Karma v0.13.22 server started at http://localhost:8080/
01 05 2016 15:03:51.112:INFO [launcher]: Starting browser PhantomJS
01 05 2016 15:03:52.259:INFO [PhantomJS 2.1.1 (Mac OS X 0.0.0)]: Connected on socket /#68w8QMUehAm8AAf2AAAA with id 17032121
PhantomJS 2.1.1 (Mac OS X 0.0.0): Executed 2 of 2 SUCCESS (0.003 secs / 0.026 secs)
jit-grunt: Plugin for the "protractor" task not found.
If you have installed the plugin already, please setting the static mapping.
See https://github.com/shootaroo/jit-grunt#static-mappings
Warning: Task "protractor:run" failed. Use --force to continue.
Aborted due to warnings.

我错过了什么吗？我已经被这个问题困扰了好几天了。非常感谢您的帮助。