Javascript 因果报应可以'；无法加载网页包

我得到了这个错误

16 07 2015 13:03:52.741:WARN [preprocess]: Can not load "webpack"!
   Error: Can not resolve circular dependency! (Resolving: preprocessor:webpack -> webpackPlugin -> preprocessor:webpack)

我的karma.conf看起来像

var webpack = require('webpack');

module.exports = function (config) {
  config.set({
    browsers: [ 'Chrome' ], //run in Chrome
    singleRun: true, //just run once by default
    frameworks: [ 'mocha' ], //use the mocha test framework
    files: [
      'tests.webpack.js' //just load this file
    ],
    preprocessors: {
      'tests.webpack.js': [ 'webpack', 'sourcemap' ] //preprocess with webpack and our sourcemap loader
    },
    reporters: [ 'dots' ], //report results in this format
    webpack: { //kind of a copy of your webpack config
      devtool: 'inline-source-map', //just do inline source maps instead of the default
      module: {
        loaders: [
          { test: /\.js$/, loader: 'babel-loader' }
        ]
      }
    },
    webpackServer: {
      noInfo: true //please don't spam the console when running in karma!
    }
  });
};

和tests.webpack.js

var context = require.context('./src', true, /-test\.js$/); //make sure you have your directory and regex test set correctly!
context.keys().forEach(context);

我确实安装了karma和karma网页包

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有什么想法吗

最新版本的karma-*项目发生了一些变化。我安装了所有最新的软件，但遇到了同样的问题。现在我完全尝试了这些版本，结果成功了。

我有一个类似的错误，但在接受的解决方案中引用的帖子对我不起作用。如果你正在寻找替代品，请阅读下面的内容

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我看到以下错误消息：

WARN [preprocess]: Can not load "webpack"!
TypeError: Object [object Object] has no method 'refreshFiles'
at Plugin.notifyKarmaAboutChanges (/Users/abhandaru/workspace/source/macaw-campaigns/node_modules/karma-webpack/index.js:108:15)
at Plugin.<anonymous> (/Users/abhandaru/workspace/source/macaw-campaigns/node_modules/karma-webpack/index.js:72:9)
at Tapable.applyPlugins (/Users/abhandaru/workspace/source/macaw-campaigns/node_modules/webpack/node_modules/tapable/lib/Tapable.js:26:37)

希望这有帮助。

您应该升级“karma”和“karma webpack”软件包。如果出现类似的异常，升级到下一版本解决了此问题：

"karma": "0.13.18",
"karma-webpack": "1.7.0"

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为什么你的karma.conf中有你的网页<代码>var webpack=require（'webpack'）

"karma": "0.13.18",
"karma-webpack": "1.7.0"