Installing detox nukes new React Native project

[anchetaWern]

Description

Not sure why, but everytime I install detox, my project folder is no longer recognized as a valid React Native project. That's a brand new React Native project which I got to run with react-native run-ios and react-native run-android. But right after installing Detox, I get this error:

Command `run-ios` unrecognized. Make sure that you have run `npm install` and that you are inside a react-native project.

I tried to execute npm install and then react-native upgrade to no avail.

Steps to Reproduce

1. Create a new RN project with:

react-native init ReactNativeTDD  --version react-native@0.55

2. Install detox:

npm install detox --save-dev

3. Run the project:

react-native run-ios

At this point, the project folder is no longer recognized as a valid RN project.

I specifically set it to RN version 0.55 because that's the latest RN version supported by Detox.

Detox, Node, Device, Xcode and macOS Versions

• Detox: 8.0.0
• React Native: 2.0.1
• Node: 8.0.0
• Device: iOS simulator: iPhone 5s
• Xcode: 9.4
• macOS: High Sierra 10.13.5

Device and verbose Detox logs

Not applicable. I can't even run the project by normal means. But following the getting started guide (https://github.com/wix/detox/blob/master/docs/Introduction.GettingStarted.md) didn't succeed either.

[noomorph]

Not a Detox issue.
Either stick to yarn add instead of npm install, or uninstall yarn.
See: yarnpkg/yarn#5240

[anchetaWern]

@noomorph thanks for the quick reply! It's working now. I used yarn to install detox and mocha.
Perhaps update the getting started guide to use yarn instead of npm? To avoid confusion for newcomers like me https://github.com/wix/detox/blob/master/docs/Introduction.GettingStarted.md