System.Data.Entity.Core.EntityException

Question

How to solve
The navigation property 'Users' on entity of type 'System.Data.Entity.DynamicProxies.Roster_15E7C2C14DF3BFAC9EE5D67288C206B1942EC1A906CA6FEAECA11962C' must implement ICollection<T> in order for Entity Framework to be able to track changes in collection

Mani Kandan · Answer

You need to at least show us the code that makes up the entity we can't make guesses. Though the exception message basically tells you what to do...

Nagu · Answer

Yes But that url's are not useful for me and Again in am getting same error

Manikandan Murugesan · Answer

Hi Nageshwar  Refer this link : https://stackoverflow.com/questions/31118257/system-data-entity-core-entitycommandexecutionexception-occurred-in-mvc-app-usin https://stackoverflow.com/questions/28466424/how-can-i-solve-this-system-data-entity-dynamicproxies-error https://stackoverflow.com/questions/7276507/serializable-classes-and-dynamic-proxies-in-ef-how But you already asked this Question on Jun 16. Thank You.