How to fix Kaminari paginate error in view?

Question

When I use Kaminari gem with the code:

Model:

def index
 @posts = Post.page(params[:page])
end

And use it in index.html.erb:

It prints the next error:

undefined method `paginate' for #<#<Class:0x000000029bbd68>:0x000000029b3dc0>

red line on <%= paginate @posts %>.

How can I fix this problem? Is my @posts paginable? I think yes.

Answer 1

If it's in the Gemfile, then you just need to run bundle install instead of gem install Kaminari. I would then restart my rails server to ensure its initializers are run to properly require its files.