Reputation: 1064

Jest Error: 'jest' is not recognized as an internal or external command, operable program or batch file

I have already installed Jest in my React project. I even installed jest-cli, but still can't use Jest in the command line. I can do an npm test, as it is in my package.json, but I have problems with the test, and in order to fix it I need to access the 'jest' command. (I need to run jest --init and to create the config file.) Thank you in advance!

See Getting Started - Jest.

Upvotes: 42

Answers (6)

sakshi talvar

Reputation: 1

I was facing the same issue for my nodejs project. I digged around, and found that my yarn.lock and package-lock.json are not in sync. I might have mistakenly used npm for adding package while i was using yarn for everything else. So when i started work on a new system , jest package was missing in devDependencies. I ran yarn,but of course jest was not installed. Before someone start pointing we should have only one lock file, i am already aware of it, it was just petty mistake.

Upvotes: 0

Yuma Ritvik

Reputation: 1

Use npx to solve the error "jest: command not found", e.g. npx jest or install the package globally by running npm install -g jest to be able to use the command without the npx prefix.

Upvotes: 0

Janaka Chathuranga

Reputation: 1840

Try installing jest as a dev dependency.
npm install --save-dev jest

Then run it with npm test, (Edit the package.json file if necessary to add the script). Don't use jest command directly. It's not recommended.
If you want to use jest command use node_modules/.bin/jest.

Upvotes: 70