To declare each capability required by your app, add a Capability element to the package manifest.
Alternatively, you can package your app using Visual Studio. See Packaging your app using Visual Studio.
Follow the steps in How to create a basic package manifest.
Determine the capabilities that your app needs. Any capabilities that are required by an API are listed in the documentation and IntelliSense ToolTip for the API. For more info, see App capability declarations.
<Capabilities> <Capability Name="internetClient"/> <Capability Name="musicLibrary"/> <Capability Name="videosLibrary"/> </Capabilities>