UIBackgroundModes error at submission

Hi,

I'm trying to submit an app to the store, but it shows the following error:

Error ITMS-90363: "Invalid Info.plist key". The key 'UIBackgroundModes' in bundle xxxxx.app/Watch/xxxxxx.app is invalid."

Player objects route audio through your Watch app, which then handles playback with the help of the system. To prevent your Watch app from terminating while it is playing audio, you must add the

UIBackgroundModes

key with the

audio

value to the

Info.plist

file of your Watch app. Adding this key lets your Watch app continue running for the purpose of playing audio. If the key is not present, playback ends when the user stops interacting with your app.

I have added the key to the app target plist as follows:

<key>UIBackgroundModes</key>

<array>

<string>audio</string>

</array>

Any suggestions?

Thank you