Publish a xamarin project App store

Job ID: 32025787

Budget: $30 – $250 USD

I have Project done in xamarin , WCF ,C#
while publishing for ios it gets lotsoff error . it works fine in anroid .
seeking a person whi have experiance in publishing xamarin project in ios .

----- these kind of error are comming
Severity Code Description Project File Line Suppression State
Error Failed to resolve assembly: 'System.Diagnostics.PerformanceCounter, Version=4.0.2.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51'