Orientation does not work

Description

This is the content of my app.json

{
  "expo": {
    "sdkVersion": "18.0.0",
    "orientation" : "portrait",
    "description" : "..."
  }
}

Expected Behavior

According to the Expo documentation the orientation property should act as: “Lock your app to a specific orientation with portrait or landscape”

Observed Behavior

It DOES NOT lock the orientation to portrait as expected.

Environment

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

• npm ls react-native-scripts: npm ERR! peer dep missing: react@>=15.4.0, required by react-native-maps@0.15.2
• npm ls react-native: npm ERR! peer dep missing: react@>=15.4.0, required by react-native-maps@0.15.2
• npm ls expo: npm ERR! peer dep missing: react@>=15.4.0, required by react-native-maps@0.15.2 npm ERR! peer dep missing: react@>=15.4.0, required by react-native-maps@0.15.2 npm ERR! peer dep missing: react@>=15.3.1, required by lottie-react-native@1.1.1 npm ERR! peer dep missing: react@>=15.4.0, required by react-native-branch@2.0.0-beta.3
• node -v: 6.11.0
• npm -v: 4.1.2
• yarn --version: 0.24.6
• watchman version: NA

Reproducible Demo

Tried on both a real Android device and a real ios device (Iphone 5)

[Lars-m]

I found that a way to get arround this is to use Expo’s: ScreenOrientation component, like:

Expo.ScreenOrientation.allow(Expo.ScreenOrientation.Orientation.PORTRAIT_UP );

This solves my problem, but does not change the fact that the orientation property in app.json, does not seem to be read

[satya164]

The first one