The term “Add-Migration” is not recognized

Question

I\'m using this MSDN Tutorial to run in VS2015 the command PM> Add-Migration MyFirstMigration -context BloggingContext that ran yesterday successfully but to

Answer 1

You have to know what is your Entity-Framework version. Also after that you have to check project.json and control these sections:

In Dependencies

check:

Microsoft.EntityFrameworkCore.Tools": {
  "version": "1.0.0-preview2-final",
  "type": "build"
},

This section:

"version": "1.0.0-preview2-final",

is related with version of your Entity-Framework and you have to change this with that.

After that the second section of the proj.json is here, In the Tools section of JSON you have:

"Microsoft.EntityFrameworkCore.Tools": "1.0.0-preview2-final",

Also this part of code is related with your Entity-Framework and last part of code in Dependencies section.

Note: After do this issues you should to close CMD and restart visual studio.