LoadError: cannot load such file -- omniauth

[joeczucha]

Clean install:

devise_token_auth 0.1.42 (also occurs with master branch from Github)
rails 5.1.5

When running rails s:

Could not load 'omniauth'. Please ensure you have the omniauth gem >= 1.0.0 installed and listed in your Gemfile.
rake aborted!
LoadError: cannot load such file -- omniauth
/Users/joe/Labs/authentication-test/app/models/user.rb:3:in `<class:User>'
/Users/joe/Labs/authentication-test/app/models/user.rb:1:in `<top (required)>'
/Users/joe/Labs/authentication-test/config/routes.rb:2:in `block in <top (required)>'
/Users/joe/Labs/authentication-test/config/routes.rb:1:in `<top (required)>'
/Users/joe/Labs/authentication-test/config/environment.rb:5:in `<top (required)>'
/Users/joe/.rbenv/versions/2.4.3/bin/bundle:23:in `load'
/Users/joe/.rbenv/versions/2.4.3/bin/bundle:23:in `<main>'

Seems that the generated user model includes the following modules:

devise :database_authenticatable, :registerable,
      :recoverable, :rememberable, :trackable, :validatable,
      :confirmable, :omniauthable

Whereas the default devise generated user model includes the following modules:

devise :database_authenticatable, :registerable,
      :recoverable, :rememberable, :trackable, :validatable,

Sure enough, removing :omniauthable from this list fixes this for me.

Thanks for your efforts with this gem.

[zachfeldman]

@joeczucha glad it was fixed! You're welcome

[PierceF]

So how do you fix it without removing :omniauthable ?
EDIT: Oh I just added the omniauth gem to the gem file to fix it