Hi Hakm,
For the Xamarin forms
application, We have to register the license in the App.Xaml.cs page. Please
refer to the below link for registering the License key.
Registration: https://help.syncfusion.com/xamarin/licensing/how-to-register-in-an-application
Please follow the below steps
for resolving the issue.
1. Clear the Nuget cache of the project.
2. Use the latest Nuget Version 21.1.35 for all Syncfusion
Xamarin Controls.
3. Register the license key in the App.Xaml.cs page of the
Xamarin forms project.
Regards,
Jeyaseelan
M