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TypeError: environment.teardown is not a function at node_modules/jest-runner/build/run_test.js
See original GitHub issue🐛 Bug Report
Hello, I have used create React app and can’t make the tests work. Initially, I got an error message with jest and jest-cli so installed jest with npm install --save-dev jest and then jest-cli with npm install jest-cli. However, I still get the following message: Test suite failed to run TypeError: environment.teardown is not a function at node_modules/jest-runner/build/run_test.js
Run npx envinfo --preset jest
Paste the results here: System: OS: macOS High Sierra 10.13.2 CPU: x64 Intel® Core™ i5-5350U CPU @ 1.80GHz Binaries: Node: 9.4.0 - ~/.nvm/versions/node/v9.4.0/bin/node Yarn: 1.6.0 - /usr/local/bin/yarn npm: 6.1.0 - ~/.nvm/versions/node/v9.4.0/bin/npm npmPackages: jest: ^23.1.0 => 23.1.0
Issue Analytics
- State:
- Created 5 years ago
- Reactions:17
- Comments:44
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I managed to make it work after deleting package-lock.json, yarn.lock, node_modules, removing jest from the dependencies in package.json, then doing npm install and yarn install!
Before I could run the tests though the script was complaining that it was missing the jest-cli.
I installed that, then got this error.