Hello!
I have a problem with new Prism 6.3 which was released recently. I'm trying to use new feature of Prism 6.3 so EventToCommandBehavior. It works on Android but on iOS I have exception:

EventToCommandBehavior not found in xmlns clr-namespace:Prism.Behaviors

which is weird, because the same namespace is found by Android. So the error message is probably totally misleading.

Anyway the code is super simple. I also have entire project (with packages and everything) on github, here:

github.com/LouisaBickley/PrismDemo

**If you don't know how to solve it, can you just get the code from repo and try to run it? also if you could add info about your config, like mac version..
**

View:

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:b="clr-namespace:Prism.Behaviors;assembly=Prism.Forms" 
             x:Class="PrismDemo.StartPage">
  <Label Text="{Binding MainText}" VerticalOptions="Center" HorizontalOptions="Center" />

  <ListView ItemsSource="{Binding People}">
    <ListView.Behaviors>
      <b:EventToCommandBehavior Command="{Binding PersonSelectedCommand}"
                                        EventName="ItemTapped"
                                        EventArgsParameterPath="Item" />
    </ListView.Behaviors>
  </ListView>
</ContentPage>

ViewModel:

using Prism.Commands;
using Prism.Mvvm;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace PrismDemo
{
    public class StartPageViewModel : BindableBase
    {
        public ObservableCollection<string> People { get; set; }

        public StartPageViewModel()
        {
            People = new ObservableCollection<string>();
            People.Add("John");
            People.Add("Tom");
            People.Add("Kate");
            People.Add("Mike");
        }

        public DelegateCommand<string> PersonSelectedCommand => new DelegateCommand<string>(OnPersonSelectedCommandExecuted);        
        void OnPersonSelectedCommandExecuted(string name)
        {
            Debug.WriteLine("Hi " + name + "!");
        }
    }
}

That's IT!

The exception is while starting the app (again, it's on iOS only)