expo install rnmapbox/maps#main with npm adds 'undefined' to package.json

[mfazekas]

Summary

% expo --version
6.0.5
% expo init --npm  
...
% cd my-app-npm
% expo install rnmapbox/maps#main
...
Installing 1 other package using npm.
> npm install
...



% cat package.json | grep rnmapbox
   "undefined": "rnmapbox/maps#main"

Works fine with yarn or installing the same package published from npm:

% expo init --yarn  
...
% cd my-app-yarn
% expo install rnmapbox/maps#main
...
> yarn add rnmapbox/maps#main
...



% cat package.json | grep rnmapbox
    "@rnmapbox/maps": "rnmapbox/maps#main",

Environment

expo-env-info 1.0.5 environment info: System: OS: macOS 12.5.1 Shell: 5.8.1 - /bin/zsh Binaries: Node: 18.8.0 - ~/.nvm/versions/node/v18.8.0/bin/node Yarn: 1.22.18 - /usr/local/bin/yarn npm: 8.18.0 - ~/.nvm/versions/node/v18.8.0/bin/npm Watchman: 2022.07.04.00 - /usr/local/bin/watchman Managers: CocoaPods: 1.11.2 - /Users/boga/.rbenv/shims/pod SDKs: iOS SDK: Platforms: DriverKit 21.4, iOS 15.5, macOS 12.3, tvOS 15.4, watchOS 8.5 Android SDK: API Levels: 23, 27, 28, 29, 30, 31 Build Tools: 28.0.3, 29.0.2, 30.0.2, 30.0.3, 31.0.0 System Images: android-25 | Google APIs ARM EABI v7a, android-26 | Google Play Intel x86 Atom, android-30 | Google APIs Intel x86 Atom, android-S | Google Play ARM 64 v8a IDEs: Android Studio: 2021.2 AI-212.5712.43.2112.8815526 Xcode: 13.4.1/13F100 - /usr/bin/xcodebuild npmPackages: expo: ~46.0.9 => 46.0.10 react: 18.0.0 => 18.0.0 react-dom: 18.0.0 => 18.0.0 react-native: 0.69.5 => 0.69.5 react-native-web: ~0.18.7 => 0.18.9 Expo Workflow: managed

Please specify your device/emulator/simulator platform, model and version

n/a

Error output

No response

Reproducible demo or steps to reproduce from a blank project

% expo --version
6.0.5
% expo init --npm  
...
% cd my-app-npm
% expo install rnmapbox/maps#main
...
Installing 1 other package using npm.
> npm install
...



% cat package.json | grep rnmapbox
   "undefined": "rnmapbox/maps#main"