entity framework - How to use migrations after adding a Key attribute to a property? -

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Package Manager Console:

One or more validation errors were detected during model:

p6.DAL.Password :: EntityType 'password' has no key defined. Define the key for this EntityType Password: EntityType: EntitySet is based on the 'password' type 'password' in which no key is defined.

class password: 

  public class password {key} public entry password ID {get; Set; } Public string password name {get; Set; } Public string IsValid {get; Set; } Public Virtual Person (Received; Set; }}

using -force in this way Try:

You can name your configuration name instead of "Configuration" . 

  update-database-verbose -force-configurationTypeName 
 
 One chance my answer will help you here:

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