karma-webpack: cannot load 'webpack'

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

About this issue

Original URL
State: closed
Created 9 years ago
Comments: 24

Commits related to this issue

Fix karma-webpack dependency (breaks build) — committed to marmelab/ng-admin by fzaninotto 9 years ago
Bumped dependencies versions to mitigate issue webpack/karma-webpack#70 — committed to mr-mig/frontend-library-starter by mr-mig 9 years ago
Bumped dependencies versions to mitigate issue webpack/karma-webpack#70 — committed to mr-mig/frontend-library-starter by mr-mig 9 years ago
Bumped dependencies versions to mitigate issue webpack/karma-webpack#70 — committed to mr-mig/originate-frontend-lib by mr-mig 9 years ago
Upgrading Karma to 0.13 for fixing the cannot-load-webpack problem — committed to trialreach/react-slick by deleted user 9 years ago

Most upvoted comments

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.

joeheyming on Jun 29, 2016

@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.

dignifiedquire on Sep 8, 2015

@joeheyming Good call out. Didn’t even think of that. Completely fixed my issues.

besh on Jul 19, 2016