I had the same problem and I solved indicating config.xml the PhoneGap version that I used previously:
<Platform name = "WinPhone">
<Preference name = "PhoneGap-version" value = "3.7.0" />
I hope can help.
You need to use the WinAppDeployCmd.exe tool in this directory:
C:\Program Files (x86)\Windows Kits\10\bin\x86
This is downloaded as part of the Windows 10 SDK