2001: There are duplicate files in AppManifest.xml. Remove one of the files and then try again.

See more:

C#

So far I've been stuck at this while submitting a Windows Phone 8 app. I've check the manifest file and there isn't any type of duplicate. Try rebuilding and nothing. Run the Store Test Kit and also get the error, twice.

Here is the manifest:

Capabilities are okay

<Capabilities>
      <Capability Name="ID_CAP_PUSH_NOTIFICATION" />
      <Capability Name="ID_CAP_IDENTITY_USER" />
      <Capability Name="ID_CAP_PHONEDIALER" />
      <Capability Name="ID_CAP_WEBBROWSERCOMPONENT" />
      <Capability Name="ID_CAP_MEDIALIB_AUDIO" />
      <Capability Name="ID_CAP_MEDIALIB_PHOTO" />
      <Capability Name="ID_CAP_MEDIALIB_PLAYBACK" />
      <Capability Name="ID_CAP_NETWORKING" />
    </Capabilities>

and the AppManifest.xaml is ok also:

<Deployment xmlns="http://schemas.microsoft.com/client/2007/deployment"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Deployment.Parts>
    </Deployment.Parts>
</Deployment>