Sage 300 Web SDK - Error occur when build solution after using wizard to generate screen

Hi all, I tried to use Visual Studio 2019 with Sage 300 Solution Wizard to generate a simple screen. Right after the solution was auto generated, I use Sage 300 Code Generation Wizard to create a payment code screen. I tried to build the solution but the error below occur. I already try to restore the nuget package. Is there anything I missed? 

 

Thanks.