KAKannan Syncfusion Team January 8, 2019 10:03 AM UTC
Hi Anh Phuong,
Thanks for contacting Syncfusion support.
Syncfusion introduced the licensing system from v22.214.171.124 for Syncfusion NuGet packages and evaluation setup. You have to generate the license key and register it when launch of your application as specified in the below help documents if you referring the NuGet packages.. However, The paid customer or Community customer can download the licensed setup which doesn’t require the key registration process.