TL enforces cypress 4.0.1

• cypress-testing-library version: 5.3.0
• node version: 2.14.0
• npm (or yarn) version: yarn 1.21.1

Relevant code or config package.json

{
  "name": "cypress-example-docker-gitlab",
  "version": "1.0.0",
  "description": "> Cypress + Docker + GitLabCI = ❤️",
  "main": "index.js",
  "private": true,
  "scripts": {
    "test": "cypress run"
  },
  "repository": {
    "type": "git",
    "url": "git+ssh://[e-mail]/cypress-io/cypress-example-docker-gitlab.git"
  },
  "keywords": [
    "cypress",
    "cypress-io",
    "example",
    "gitlab"
  ],
  "author": "[e-mail]",
  "license": "ISC",
  "bugs": {
    "url": "https://gitlab.com/cypress-io/cypress-example-docker-gitlab/issues"
  },
  "homepage": "https://gitlab.com/cypress-io/cypress-example-docker-gitlab#README",
  "devDependencies": {
    "cypress": "3.8.3",
    "@testing-library/cypress": "^5.3.0"
  }
}

What you did: I cloned the cypress gitlab example and added the testing library cypress dependency (as seen in the package.json above) and bumped the cypress version to 3.8.3. I then run cypress in a docker container: docker run --rm -it -v /<path to repo>/:/<new dir>/ cypress/browsers:node12.14.0-chrome79-ff71 bash What happened: While doing yarn inside the container I receive an error! Apparently, yarn tries to install two versions of Cypress (3.8.3 and 4.0.1). I remove the TL dependency the error disappears. Not sure whether this expected behaviour or whether the provided peerDependency in TL should handle this?

 The Cypress App could not be downloaded.

Does your workplace require a proxy to be used to access the Internet? If so, you must configure the HTTP_PROXY environment variable before downloading Cypress. Read more: https://on.cypress.io/proxy-configuration

Otherwise, please check network connectivity and try again:

----------

URL: https://download.cypress.io/desktop/4.0.1?platform=linux&arch=x64
Error: Corrupted download

Expected downloaded file to have checksum: 7e26904b56c560f9ba893085903b8435c651a86058b4ba81075f51158e4846e884a039c473d07ce74ef93ab8134164e8fe6eac192a8fababe99fc13ce757310e
Computed checksum: 12c7e488d3ff1f7452979b64972d7ed3b12ca127f2f388abdf816660509fa37034aae50256d91da0affb9eeefaad4fd01eff07e60839e15513516c4af02f869a

Expected downloaded file to have size: 167819701
Computed size: 167819701

----------

Platform: linux (Debian - 9.11)
Cypress Version: 4.0.1
The Cypress App could not be downloaded.

Does your workplace require a proxy to be used to access the Internet? If so, you must configure the HTTP_PROXY environment variable before downloading Cypress. Read more: https://on.cypress.io/proxy-configuration

Reproduction repository:

https://gitlab.com/cypress-io/cypress-example-docker-gitlab

[kentcdodds]

Type Defs are now built-in, so this shouldn’t be a problem anymore.

[kentcdodds]

I understand your position and I’ve suggested a solution. I don’t have the bandwidth to work on it right now, but I’d welcome anyone to make a PR to internalize the types or even rewrite to TypeScript if they want to. I think that removing the dependency would be a breaking change and I’m not prepared to do that at the moment.