Error in creating application using sample OData

radzen: Generating code ...
radzen: Code generation done in 5785ms.
dotnet: watch :
dotnet: Started

dotnet: CSC : warning CS8034: Unable to load Analyzer assembly C:\Users\Sony.nuget\packages\microsoft.aspnetcore.components.analyzers\3.1.0\analyzers\dotnet\cs\Microsoft.AspNetCore.Components.Analyzers.dll : Assembly with same name is already loaded [D:\OneDrive-Niit Technologies\OneDrive - NIIT Technologies\Project\server\NiitRadzenDemo.csproj]

dotnet: obj\Debug\netcoreapp3.1\Razor\Pages\EditOrderDetail.razor.g.cs(181,261): error CS1977: Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type. [D:\OneDrive-Niit Technologies\OneDrive - NIIT Technologies\Project\server\NiitRadzenDemo.csproj]
obj\Debug\netcoreapp3.1\Razor\Pages\EditOrderDetail.razor.g.cs(229,267): error CS1977: Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type. [D:\OneDrive-Niit Technologies\OneDrive - NIIT Technologies\Project\server\NiitRadzenDemo.csproj]
obj\Debug\netcoreapp3.1\Razor\Pages\EditOrderDetail.razor.g.cs(101,174): error CS1662: Cannot convert lambda expression to intended delegate type because some of the return types in the block are not implicitly convertible to the delegate return type [D:\OneDrive-Niit Technologies\OneDrive - NIIT Technologies\Project\server\NiitRadzenDemo.csproj]

dotnet: obj\Debug\netcoreapp3.1\Razor\Pages\AddOrderDetail.razor.g.cs(181,261): error CS1977: Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type. [D:\OneDrive-Niit Technologies\OneDrive - NIIT Technologies\Project\server\NiitRadzenDemo.csproj]
obj\Debug\netcoreapp3.1\Razor\Pages\AddOrderDetail.razor.g.cs(229,267): error CS1977: Cannot use a lambda expression as an argument to a dynamically dispatched operation without first casting it to a delegate or expression tree type. [D:\OneDrive-Niit Technologies\OneDrive - NIIT Technologies\Project\server\NiitRadzenDemo.csproj]
obj\Debug\netcoreapp3.1\Razor\Pages\AddOrderDetail.razor.g.cs(101,174): error CS1662: Cannot convert lambda expression to intended delegate type because some of the return types in the block are not implicitly convertible to the delegate return type [D:\OneDrive-Niit Technologies\OneDrive - NIIT Technologies\Project\server\NiitRadzenDemo.csproj]

dotnet:

dotnet: The build failed. Fix the build errors and run again.

dotnet: watch :
dotnet: Exited with error code 1

dotnet: watch :
dotnet: Waiting for a file to change before restarting dotnet...

Thanks for the report! I was able to reproduce the problem when creating CRUD pages with "Allow paging, sorting and filter of lookup data" option is turned on. We will do our best to include fix for this in some of our next releases and in the meantime you can use normal DropDown for lookups (do not turn on this option).