Connecting to Mysql DB

Hello,

I'm fairly new to Xamarin.Forms and I'm trying to connect to a MYSQL DB but I keep getting this error on compile

Error CS1684: Reference to type System.ICloneable' claims it is defined assemblymscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089', but it could not be found

on MySqlConnection. I did add both the package to the shared project and the reference was also added manually.
Not sure how to fix this problem,please help