Ruby on Rails Friday, February 13, 2015

On 13 February 2015 at 16:01, Frédéric Champreux <lists@ruby-forum.com> wrote:
> Trying to upgrade from Ruby 2.0 / Rails 4.0 to Ruby 2.2 / Rails 4.2, I
> face a surprising error when logging into my application (based on Rails
> Tutorial by M. Hartl):
>
> Controller: SessionsController#create
> Instruction: redirect_to root_url
> Error message: wrong number of arguments (2 for 1)

Could you copy/paste the full error message from the terminal please?

Colin

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