# Acts\_as\_taggable\_on\_steroids NoMethodError **URL:** \ **Category:** Rails\ **Created:** [September 17, 2007, 8:55am UTC](https://www.ruby-forum.com/t/acts-as-taggable-on-steroids-nomethoderror/114599 "2007-09-17T08:55:33Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![nside](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/96bed5/32.png) [@nside](https://www.ruby-forum.com/u/nside)\ **Post date:** [September 17, 2007, 8:55am UTC](https://www.ruby-forum.com/t/acts-as-taggable-on-steroids-nomethoderror/114599/1 "2007-09-17T08:55:33Z")
Hello, I use acts\_as\_taggable\_on\_steroids, for tagging and I get this error: “NoMethodError (undefined method `+' for #): .//app/controllers/user_photos_controller.rb:83:in`add\_tag’” The code in the controller is: def add\_tag @photo = @logged\_in\_user.photos.find(params[:id]) 83 @photo.tag\_list += ‘,’ + params[:tag][:name] @photo.save @new\_tag = @photo.reload.tags.last end Please advise on what could the problem be, as until now I tried everything I knew and search the forum and net for any ideas and found nothing to help. ---
**Author:** ![nside](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/96bed5/32.png) [@nside](https://www.ruby-forum.com/u/nside)\ **Post date:** [September 17, 2007, 1:24pm UTC](https://www.ruby-forum.com/t/acts-as-taggable-on-steroids-nomethoderror/114599/2 "2007-09-17T13:24:33Z")
Use this to add your tags p.tag\_list.add(“Great”, “Awful”) ---
**Author:** ![nside](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/96bed5/32.png) [@nside](https://www.ruby-forum.com/u/nside)\ **Post date:** [September 17, 2007, 3:40pm UTC](https://www.ruby-forum.com/t/acts-as-taggable-on-steroids-nomethoderror/114599/3 "2007-09-17T15:40:49Z")
Ivor P. wrote: > Use this to add your tags > > p.tag\_list.add(“Great”, “Awful”) Hello, Thank you very much, it worked swell. I’m still trying thou to understand why it didn’t worked the other way. Anyway thanks again for the help and best regards.