Cypress app gets not installed when dependency is added using yarn

[bahmutov]

@fvanwijk commented on Tue Sep 12 2017

• Operating System: OSX 10.12.6
• Cypress Version: 0.20
• Browser Version: n/a

Is this a Feature or Bug?

Bug

Current behavior:

I already have a working Cypress project and I upgraded to 0.20 by reinstalling it locally using yarn

$ yarn add -D cypress

Calling npm cypress:open (= ./node_modules/.bin/cypress open) gives the error that Cypress is not installed yet. I have to install Cypress manually by calling ./node_modules/.bin/cypress install.

Desired behavior:

I want cypress install to trigger automatically after adding with yarn so that it can be opened immediately.

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@bahmutov commented on Tue Sep 12 2017

Hmm, we use postinstall script to actually install the binary

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@bahmutov commented on Wed Sep 13 2017

Might be related to Yarn bug yarnpkg/yarn#853

[iganzina-epam]

Had similar issue, getting following error while running yarn install and having "cypress" dependency in package.json:

error Couldn't find package "@cypress/listr-verbose-renderer" on the "npm" registry.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
Error: Couldn't find package "@cypress/xvfb" on the "npm" registry.

The reason was that in yarn global config I had our company's registry as a default one. So, adding “@cypress:registry” “https://registry.npmjs.org/” to .yarnrc and to .npmrc solved the issue.