I’ve encountered an error when creating the photo gallery.
NoMethodError in User_photos#show
Showing user_photos/show.rhtml where line #2 raised:
You have a nil object when you didn’t expect it!
The error occurred while evaluating nil.user
Extracted source (around line #2):
1:

2: <%= link_to ”#{@photo.user.username}’s Photos”,
3: user_new_photo_path(:user_id => @photo.user) %>
4: