Nuget command enable-migrations

Question

Hi Team

 

I want to do enable migration some-how i am getting this error back. Any ideas how can i resolve this. 

Enable-Migrations
More than one context type was found in the assembly 'eNtsaRegistrationTraining'.
To enable migrations for 'eNtsaRegistrationTraining.Models.ApplicationDbContext', use Enable-Migrations -ContextTypeName eNtsaRegistrationTraining.Models.ApplicationDbContext.
To enable migrations for 'eNtsaRegistrationTraining.DAL.eNtsaRegCourses', use Enable-Migrations -ContextTypeName eNtsaRegistrationTraining.DAL.eNtsaRegCourses.
To enable migrations for 'eNtsaRegistrationTraining.DAL.eNtsaRegistration', use Enable-Migrations -ContextTypeName eNtsaRegistrationTraining.DAL.eNtsaRegistration.
PM> Enable-Migrations -ContextTypeName eNtsaRegistrationTraining.DAL.eNtsaCourses
The context type 'eNtsaRegistrationTraining.DAL.eNtsaCourses' was not found in the assembly 'eNtsaRegistrationTraining'.