Cypress cannot find external dependencies in CI

[directcuteo]

Hi. In my Angular application, I use an external Cypress helper library called cypress-localstorage-commands to access the localStorage as a Cypress Chainable object. Locally, the library is well imported and the tests are working fine.

Inside Drone pipeline Cypress doesn't recognize this library and I don't know how to properly import it inside the pipeline.

Locally I installed it using: npm i --save-dev cypress-localstorage-commands
and imported in cypress/support/commands.js using import 'cypress-localstorage-commands';

The message cypress is showing inside the pipeline is:

Oops...we found an error preparing this test file:

  cypress/support/index.js

The error was:

Error: Webpack Compilation Error
./cypress/support/commands.js
Module not found: Error: Can't resolve 'cypress-localstorage-commands' in '/drone/src/cypress/support'
resolve 'cypress-localstorage-commands' in '/drone/src/cypress/support'
  Parsed request is a module
  using description file: /drone/src/package.json (relative path: ./cypress/support)
    Looked for and couldn't find the file at the following paths: or is not a directory
[/drone/src/cypress/support/node_modules]
[/drone/src/cypress/node_modules]
[/drone/src/node_modules]
[/drone/node_modules]
[/node_modules]
 @ ./cypress/support/commands.js 3:0-40
 @ ./cypress/support/index.js

This occurred while Cypress was compiling and bundling your test code. This is usually caused by:

- A missing file or dependency
- A syntax error in the file or one of its dependencies

Fix the error in your code and re-run your tests.

I even tried before the test to run as a Docker command: npm install && npm i cypress-localstorage-commands && \ but Cypress still doesn't see the library.

I ask for your guidance. Thanks in advance!