javascript Karma 无法加载 webpack
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Karma can't load webpack
提问by Bulkan
I'm getting this error;
我收到此错误；
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)
My karma.conf looks like;
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$/, loader: 'babel-loader' }
]
}
},
webpackServer: {
noInfo: true //please don't spam the console when running in karma!
}
});
};
and tests.webpack.js
和tests.webpack.js
var context = require.context('./src', true, /-test\.js$/); //make sure you have your directory and regex test set correctly!
context.keys().forEach(context);
I do have karma and karma-webpack installed.
我确实安装了 karma 和 karma-webpack。
Any ideas ?
有任何想法吗 ？
采纳答案by Oleg Isonen
回答by adu
I had a similar error but the post referenced in the accepted solution did not work for me. If you're looking for alternatives, read below!
我有一个类似的错误，但接受的解决方案中引用的帖子对我不起作用。如果您正在寻找替代品，请阅读以下内容！
I was seeing the following error message:
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)
I found this solution on a Github issue:
我在 Github 问题上找到了这个解决方案：
https://github.com/webpack/karma-webpack/issues/65
https://github.com/webpack/karma-webpack/issues/65
Here is are the updated lines in my package.json:
这是我的更新行package.json：
"karma": "^0.13.3",
"karma-chrome-launcher": "^0.2.0",
"karma-jasmine": "^0.3.6",
"karma-webpack": "^1.7.0",
Hope this helps.
希望这可以帮助。
回答by VadimB
You should upgrade "karma" and "karma-webpack" packages. Had similar exception, upgrading to next versions solved this:
您应该升级“karma”和“karma-webpack”包。有类似的例外，升级到下一个版本解决了这个问题：
"karma": "0.13.18",
"karma-webpack": "1.7.0"
