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I was trying to setup and run nx tests for an established nx.dev angular application.

When I run nx e2e app-name-e2e

I get the error:

Cannot find module 'cypress/package.json'
Require stack:
- C:\repos\MyConnect2\src\Frontend\myconnect2\node_modules\@nrwl\cypress\src\utils\cypress-version.js
- C:\repos\MyConnect2\src\Frontend\myconnect2\node_modules\@nrwl\cypress\src\executors\cypress\cypress.impl.js
- C:\repos\MyConnect2\src\Frontend\myconnect2\node_modules\@nrwl\tao\src\shared\workspace.js
- C:\repos\MyConnect2\src\Frontend\myconnect2\node_modules\@nrwl\tao\src\commands\run.js
- C:\repos\MyConnect2\src\Frontend\myconnect2\node_modules\@nrwl\tao\index.js
- C:\repos\MyConnect2\src\Frontend\myconnect2\node_modules\@nrwl\cli\lib\run-cli.js

e2e tests were never used on this app, so configuration errors are not excluded (as the app had a few upgrades along the way, and e2e config might not have been maintained correctly).

This is running with angular v11.2 (and nx v 11.2), configured with default cypress for this nx.dev version

The Fabio
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1 Answers1

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Found it... Thank you Pali for the comment

As the error states, the module cypress/package.json is missing, that means the package "cypress" is missing.

Someone removed it along the way in this project as it takes a while to install...

The package "@nrwl/cypress" (nx.dev's cypress module) does not have a nominated dependency on the "cypress" package (but clearly has an implicit one).

I added the "cypress" package to the package.json file and installed it, and the problem no longer happens

The Fabio
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  • Yes best practice , whenever you got error like `cannot find module ..... `. try to delete lock file and node_modules folder and install again. – Dheeraj kumar Rao May 27 '22 at 09:24