erro, asp net core- .net core 3.1

[pedro]

Boa tarde.

Eu instalei a versão mais recente do KendoUICore para .netcore 3.1, e continua a dar este erro:

System.AggregateException
  HResult=0x80131500
  Message=Some services are not able to be constructed (Error while validating the service descriptor 'ServiceType: Kendo.Mvc.Rendering.IKendoHtmlGenerator Lifetime: Transient ImplementationType: Kendo.Mvc.Rendering.KendoHtmlGenerator': Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=3.1.25.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.)
  Source=Microsoft.Extensions.DependencyInjection
  StackTrace:
   at Microsoft.Extensions.DependencyInjection.ServiceProvider..ctor(IEnumerable`1 serviceDescriptors, ServiceProviderOptions options)
   at Microsoft.Extensions.DependencyInjection.ServiceCollectionContainerBuilderExtensions.BuildServiceProvider(IServiceCollection services, ServiceProviderOptions options)
   at Microsoft.Extensions.DependencyInjection.DefaultServiceProviderFactory.CreateServiceProvider(IServiceCollection containerBuilder)
   at Microsoft.Extensions.Hosting.Internal.ServiceFactoryAdapter`1.CreateServiceProvider(Object containerBuilder)
   at Microsoft.Extensions.Hosting.HostBuilder.CreateServiceProvider()
   at Microsoft.Extensions.Hosting.HostBuilder.Build()
   at WebApplication2.Program.Main(String[] args) in C:\Users\Pedro.q.Magalhaes\source\repos\WebApplication2\WebApplication2\Program.cs:line 17

  This exception was originally thrown at this call stack:
    [External Code]

Inner Exception 1:
InvalidOperationException: Error while validating the service descriptor 'ServiceType: Kendo.Mvc.Rendering.IKendoHtmlGenerator Lifetime: Transient ImplementationType: Kendo.Mvc.Rendering.KendoHtmlGenerator': Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=3.1.25.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.

Inner Exception 2:
TypeLoadException: Could not load type 'Microsoft.AspNetCore.Mvc.Internal.ClientValidatorCache' from assembly 'Microsoft.AspNetCore.Mvc.Core, Version=3.1.25.0, Culture=neutral, PublicKeyToken=adb9793829ddae60'.

[Alexander]

Hi Pedro,

I noticed that there is not a Telerik UI for ASP.NET Core license associated with your account which limits the availability of our support services for the product. In this regard, it is recommended that you either purchase or renew your license in order to gain access to the latest updates, fixes, features, and support regarding the Telerik UI for ASP.NET Core components. More information regarding our currently available plans can be found in the Support Plans section.

In addition, as mentioned in our Support Policy section, the official language for Customer Support communication is English.

With that being said, a similar topic has been discussed in the following resources that you might find helpful:

• https://www.telerik.com/forums/services-addkendo()

• https://stackoverflow.com/questions/64281181/kendo-for-net-core-3-1

I hope this helps.

Regards,
Alexander
Progress Telerik