If you are trying to submit your app to iOS store, then you may get a response from the apple store, that

ITMS-90683: Missing Purpose String in Info.plist NSCameraUsageDescription

For NSCameraUsageDescription, we need to add the exact purpose of using camera in the Value column. For example,

You may also add it other way, directly editing info.plist file

<dict>
    ...
    <key>NSCameraUsageDescription</key>
    <string>My_app_name needs to access the camera to do x_thing. 
    </string>
<dict>