karma start Cannot find module 'jasmine-core'

Question

I was getting the following error when I ran \"karma start\"

module.js:340 throw err; ^ Error: Cannot find module \'jasmine-core\' at

Answer 1

I have this problem, and have tried every suggestion on the page without it fixing the problem. Well, I haven't yet rebooted, so I'll try that next, but I have closed my shell (git-bash) and re-opened it in case it was an environment variable problem. Something is wrong here and I don't think the problem has been identified yet.

Answer 2

Even with karma and karma-jasmine installed in the local project's node_modules you must still npm install jasmine.

So for a fresh Karma project:

1. npm install karma karma-jasmine jasmine to install the required modules locally.

Optionally add --save-dev to write to your package.json. Note these do not need to be -g globally installed here.

2. karma start

This step requires you to have Karma installed globally (sudo npm install -g karma).

Answer 3

Also, it is important to know the installation path where do you have karma.conf.js file.

Answer 4

Navigate to folder:

cd node_modules\karma-jasmine

Run:

npm install

This should download the required dependencies and fix the issue.

Answer 5

try install jasmine-core globally (Jasmine on NPM). use npm install -g jasmine-core

Answer 6

I solved using npm install jasmine-core --save-dev