ruby on rails - Render Paperclip Avatar -

i'm trying render user's avatar on show page.

scenario: user creates account , set's avatar. avatar displayed correctly oh profile page(stretchy there). on page says

undefined method `avatar' nil:nilclass

the code

<%= image_tag @user.avatar.url(:avatar), class: "size48" %>

edit

in views folder image get's rendered on users folder, on other folders im getting error.

@user variable nil. there should @user = user.find(params[:id]) in controller action of page you're trying load.

Live