My app crashes when adding StyleId to Image

Hi,

I have this image in my app:

<Image Source="{Binding banner_image}" ClassId="{Binding banner_category}" StyleId="{Binding banner_reference}" Aspect="AspectFill">
<Image.GestureRecognizers>
    <TapGestureRecognizer Tapped="OnBannerImageTapGestureRecognizerTapped" NumberOfTapsRequired="1" />
</Image.GestureRecognizers>
</Image>

when I add the StyleId="{Binding banner_reference}" to the image my app crashes with this error:

**Xamarin.Forms.Xaml.XamlParseException: Position 61:92. Cannot assign property "StyleId": Property does not exist, or is not assignable, or mismatching type between value and property
**
but when I remove it then my app works fine.

The banner_reference is not null and it's working beautifully when I assign the banner_reference to the ClassId so there is nothing wrong with the data from my database.

then where is the issue here please?

Thanks,
Jassim