Dnx: Error: cannot load the application or execute the 'ef' command

Question

I am using ASP.NET 5 Beta 8 with Entity Framework 7 Beta 8

I created a new class library package.

I performed the following installation package requests:

 Install-Package EntityFramework.SqlServer -Pre Install-Package EntityFramework.Commands -Pre Install-Package Microsoft.AspNet.Identity.EntityFramework -Pre 

My project.json

 { "version": "1.0.0-*", "description": "MARS Class Library", "authors": [ "myname" ], "tags": [ "" ], "projectUrl": "", "licenseUrl": "", "frameworks": { "dnx451": { } }, "dependencies": { "EntityFramework.Commands": "7.0.0-beta8", "EntityFramework.SqlServer": "7.0.0-beta8", "Microsoft.AspNet.Identity.EntityFramework": "3.0.0-beta8", } } 

In the package manager console, I go to the src\project directory where project.json is located and runs any dnx ef command, for example:

 dnx ef migrations --help 

or

  dnx ef migrations add InitialMigration 

However, I get the following error:

dnx: Error: Cannot load the application or execute the 'ef' command.

In line: 1 char: 1

• dnx ef migrations --help

• ~~~~~~~~~~~~~~~~~~~~~~~~~~

  • CategoryInfo: NotSpecified: (Error: Could not execute t ... e "ef" .: String) [], RemoteException
  • FullyQualifiedErrorId: NativeCommandError

I have class classes and DBContext class classes, but the error seems to be due to the fact that the ef keyword cannot be understood at all.

What am I missing?

Answer 1

Decision:

Add the ef command to your project.json

  "commands": { "ef": "EntityFramework.Commands" }