YUN Shield issue after upgrade

Official Hardware Classic Yún
1

I upgraded from 1.5 to 1.6 IDE. As soon as I did, the YUN Shield platform.txt file started throwing the following error:

Property line '?' in file C:\Users\User\Documents\Arduino\hardware\YunShield\avr\platform.txt is invalid

Error compiling.

Any ideas on this?

2

Ended up reverting to the older version, due to no response on this.

3

Setup Dragino and Arduino IDE