Missing script: eject

Description

I have an Expo App (which I have created with Expo, did not recall calling create-react-native-app), which I would like to be able to run both through Expo and with Xcode. So, I duplicated by copy-pasting the Expo App and run npm run eject in the project directory of a duplicate. When I did that, i get the error: missing script: eject

Expected Behavior

I expected being walked through the process of ejecting:

This is usually as simple as running npm run eject in your project, which will walk you through the process.

Observed Behavior

I got the error:

missing script: eject   
A complete log of this run can be found in:
/Users/UserName/.npm/_logs/2017-09-28T15_03_32_533Z-debug.log

0 info it worked if it ends with ok
1 verbose cli [ '/usr/local/Cellar/node/8.6.0/bin/node',
1 verbose cli   '/usr/local/bin/npm',
1 verbose cli   'run',
1 verbose cli   'eject' ]
2 info using npm@5.4.2
3 info using node@v8.6.0
4 verbose stack Error: missing script: eject
4 verbose stack     at run (/usr/local/lib/node_modules/npm/lib/run-script.js:151:19)
4 verbose stack     at /usr/local/lib/node_modules/npm/lib/run-script.js:61:5
4 verbose stack     at /usr/local/lib/node_modules/npm/node_modules/read-package-json/read-json.js:115:5
4 verbose stack     at /usr/local/lib/node_modules/npm/node_modules/read-package-json/read-json.js:402:5
4 verbose stack     at checkBinReferences_ (/usr/local/lib/node_modules/npm/node_modules/read-package-json/read-json.js:357:45)
4 verbose stack     at final (/usr/local/lib/node_modules/npm/node_modules/read-package-json/read-json.js:400:3)
4 verbose stack     at then (/usr/local/lib/node_modules/npm/node_modules/read-package-json/read-json.js:160:5)
4 verbose stack     at /usr/local/lib/node_modules/npm/node_modules/read-package-json/read-json.js:348:12
4 verbose stack     at /usr/local/lib/node_modules/npm/node_modules/graceful-fs/graceful-fs.js:78:16
4 verbose stack     at tryToString (fs.js:514:3)
5 verbose cwd /Users/UserName/workspace/MyApps/app-number-2
6 verbose Darwin 16.5.0
7 verbose argv "/usr/local/Cellar/node/8.6.0/bin/node" "/usr/local/bin/npm" "run" "eject"
8 verbose node v8.6.0
9 verbose npm  v5.4.2
10 error missing script: eject
11 verbose exit [ 1, true ]

Environment

Please run these commands in the project folder and fill in their results:

• npm ls react-native-scripts:

app-number-1@0.0.0 /Users/UserName/workspace/MyApps/app-number-2-└── (empty)

• npm ls react-native: app-number-1@0.0.0 /Users/UserName/workspace/MyApps/app-number-2 └── react-native@0.46.1
• npm ls expo: app-number-1@0.0.0 /Users/UserName/workspace/MyApps/app-number-2 └── expo@19.0.0
• node -v: v8.6.0
• npm -v: 5.4.2
• yarn --version: -bash: yarn: command not found
• watchman version: { “version”: “4.9.0” } Also specify:

1. Operating system: macOS Sierra 10.12.4
2. Phone/emulator/simulator & version: iPhone6 - iOS 10.3

Reproducible Demo

Please provide a minimized reproducible demonstration of the problem you’re reporting.

Issues that come with minimal repro’s are resolved much more quickly than issues where a maintainer has to reproduce themselves.

[anp]

@Benzer1406 we’re working on adding this functionality to projects created by Expo tools, but aren’t there quite yet.

[Benzer1406]

Have the same problem. Just created a fresh project with Expo IDE. Just wanted to eject it, to test is for future ejection and implementation of native APIs, but I get the error “missing script: eject”