Xamarin Forms: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation

Question

I am struggling with this issue. I created just a simple cross platform page here is XAML code:

Answer 1

You have mistake in your Carousel page

<?xml version="1.0" encoding="utf-8" ?>
<CarouselPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="ForTesting.TestPage">
  <Label Text="{Binding MainText}" VerticalOptions="Center" HorizontalOptions="Center" />
  <ContentPage>
    <ContentPage.Padding>
      <OnPlatform x:TypeArguments="Thickness" iOS="0,40,0,0" Android="0,40,0,0" />
    </ContentPage.Padding>
  </ContentPage>
</CarouselPage>

Carousel page should have only one child, and it should be a ContentPage, you won't be able to add both label and content page. Remove this line

 <Label Text="{Binding MainText}" VerticalOptions="Center" HorizontalOptions="Center" />

If you want to have both label and content in a Carousel, I would suggest using something like CarouselView.

EDIT 1

I've create a sample Carousel project with latest Xamarin.Forms (2.2.0.31), I've tested it on iOS and Android and it works. You can use it as a starter to implement your version. I use this control in production app.

Answer 2

In general, I've noticed that any syntax errors in XAML may show up as this exception.