I've been browsing stack overflow and I noticed that many people use simple_form to make their lives easier.

I wanted to give it a try, so I added the gem to my gem file (gem 'simple_form') and sent:

rails generate simple_form:install --bootstrap

After reading the installation message, I created a view with the sample code from the readme:

<%= simple_form_for @user do |f| %>
  <%= f.input :username %>
  <%= f.input :password %>
  <%= f.button :submit %>
<% end %>

Unfortunately, I get this error as soon as I try to load the page:

undefined method `simple_form_for' for #<#<Class:0x69dd688>:0x6903ac8>

What gives? How come it can't even recognize the method? I feel like I'm missing something really simply here. Could it be because i'm using bootstrap-sass? Do I need to include a helper in my user controller?

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