Compile app iOs in MacBook

[ivanteles]

I'm having this problem when trying to generate my ipa file.
In the emulator works perfectly, both on windows as on mac, as on android.

How to solve?
my target framework .net standart 2.0

Package 'Xam.Plugin.Iconize 1.0.10' was restored using '.NETFramework,Version=v4.6.1' instead of the project target framework '.NETStandard,Version=v2.0'. This package may not be fully compatible with your project.