Ffimageloading: 'fftransformations' is an undeclared prefix

[MosCD]

Description

I seems transformations are not working in XAML.

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:local="clr-namespace:myapp" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="myapp.somePage" xmlns:ffimageloading="clr-namespace:FFImageLoading.Forms;assembly=FFImageLoading.Forms"> <ContentPage.Content> <ffimageloading:CachedImage Source="location.png"> <ffimageloading:CachedImage.Transformations> <fftransformations:GrayscaleTransformation /> </ffimageloading:CachedImage.Transformations> </ffimageloading:CachedImage> </ContentPage.Content> </ContentPage>

Steps to Reproduce

Once you add transformations even hitting "control+I" to auto formate code, VisualStudio says
'fftransformations' is an undeclared prefix
this will not be solved by adding any code to AppDelegate.cs or MainActivity
because VS doesn't even recognize fftransformations on the first place

Expected Behavior

Actual Behavior

Basic Information

• Version with issue:
• Last known good version:
• Platform:

Screenshots

Reproduction Link / Code

[MosCD]

Well
I found that I should have declared the fftransformations namespace
That is not clear in the guide.
for people who come here from search

declare the namespace same as declaring it for the plugin

xmlns:ffimageloading="clr-namespace:FFImageLoading.Forms;assembly=FFImageLoading.Forms" 
xmlns:fftransformations="clr-namespace:FFImageLoading.Transformations;assembly=FFImageLoading.Transformations"