Stuck on an issue?

Lightrun Answers was designed to reduce the constant googling that comes with debugging 3rd party libraries. It collects links to all the places you might be looking at while hunting down a tough bug.

And, if you’re still stuck at the end, we’re happy to hop on a call to see how we can help out.

cannot load 'webpack'

See original GitHub issue

Errors:
Can not load "webpack"!
  TypeError: undefined is not a function
    at Plugin.notifyKarmaAboutChanges (/Users/jz/jsfiddles/template/node_modules/karma-webpack/index.js:108:15)
    at Plugin.<anonymous> (/Users/jz/jsfiddles/template/node_modules/karma-webpack/index.js:72:9)
    at Tapable.applyPlugins (/Users/jz/jsfiddles/template/node_modules/webpack/node_modules/tapable/lib/Tapable.js:26:37)
    at Watching._done (/Users/jz/jsfiddles/template/node_modules/webpack/lib/Compiler.js:78:17)
    at Watching.<anonymous> (/Users/jz/jsfiddles/template/node_modules/webpack/lib/Compiler.js:61:18)
    at Tapable.emitRecords (/Users/jz/jsfiddles/template/node_modules/webpack/lib/Compiler.js:281:37)
    at Watching.<anonymous> (/Users/jz/jsfiddles/template/node_modules/webpack/lib/Compiler.js:58:19)
    at /Users/jz/jsfiddles/template/node_modules/webpack/lib/Compiler.js:274:11
    at Tapable.applyPluginsAsync (/Users/jz/jsfiddles/template/node_modules/webpack/node_modules/tapable/lib/Tapable.js:60:69)
    at Tapable.afterEmit (/Users/jz/jsfiddles/template/node_modules/webpack/lib/Compiler.js:271:8)

here is my package.json file

{
  "name": "components",
  "version": "0.0.1",
  "description": "components",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {




  },
  "devDependencies": {
    "babel-core": "^5.8.9",
    "babel-loader": "^5.3.2",
    "css-loader": "^0.15.6",
    "jasmine-core": "^2.3.4",
    "karma": "^0.12.37",
    "karma-chrome-launcher": "^0.2.0",
    "karma-jasmine": "^0.3.6",
    "karma-sourcemap-loader": "^0.3.5",
    "karma-webpack": "^1.6.0",
    "less": "^2.5.1",
    "less-loader": "^2.2.0",
    "lodash": "^3.10.0",
    "style-loader": "^0.12.3",
    "webpack": "^1.10.5"
  }
}

I change karma version to ~0.12.37 and karma-webpack to ~1.6.0，it works; But when karma-webpack is 1.7.0, it throw errors when I run karma start karma.config.js

Issue Analytics

State:
Created 8 years ago
Comments:24

Top GitHub Comments

9reactions

joeheymingcommented, Jun 29, 2016

wow, this whole time I wasn’t using node_modules/.bin/karma and was instead using the global karma.

Just wanted to say this in case anyone else had the same issue.

8reactions

dignifiedquirecommented, Sep 8, 2015

@pojka @jingzhou123 I’ve just checked you repo and everything is working fine for me, I ran

$ npm install
$ node_modules/.bin/karma start karma.conf.js

Could you check that you are using karma-cli and not karma installed globally, and make sure the global version which you call with karma is actually up to date.