System.MissingMethodException: 'Method not found: 'System.Object System.Activator.GetObject(System.Type, System.String)'. dotnet core

I am trying to get data here :

public IEnumerable<customer> Get()
        {
            using (ICustomers services= FacadeFactory.Instance.GetCustomersService()) // here I get error
            {
                var customers = services.GetAll();
            }
        return customers ;
       }

I get this error :

System.MissingMethodException
  HResult=0x80131513
  Message=Method not found: 'System.Object System.Activator.GetObject(System.Type, System.String)'.
  Source=Sales.Common
  StackTrace:
   at Sales.Common.FacadeFactory.GetCustomersService() in D:\Radan\Radan_SVN\Radan_SourceCode\SMS\Sales.Common\FacadeFactory.cs:line 179
   at SalesContractTest.Controllers.WeatherForecastController.Get() in C:\Users\ali eshghi\source\repos\SalesContractTest\SalesContractTest\Controllers\WeatherForecastController.cs:line 31
   at Microsoft.Extensions.Internal.ObjectMethodExecutor.Execute(Object target, Object[] parameters)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.SyncObjectResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
   at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<<InvokeActionMethodAsync>g__Logged|12_1>d.MoveNext()

I was wondering if someone can help me here, method existed there but I don't get why I get this error