# Problem about "no action" error **URL:** \ **Category:** Rails\ **Created:** [September 20, 2010, 9:24am UTC](https://www.ruby-forum.com/t/problem-about-no-action-error/195228 "2010-09-20T09:24:54Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![kun\_niu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/8c91f0/32.png) [@kun\_niu](https://www.ruby-forum.com/u/kun_niu)\ **Post date:** [September 20, 2010, 9:24am UTC](https://www.ruby-forum.com/t/problem-about-no-action-error/195228/1 "2010-09-20T09:24:54Z")
Hi all, I’m a ROR newbie. I’m writing ROR application on Ubuntu 10.04, ruby 1.8.7-p249, rails 2.3.5, mongrel 1.1.5. I wrote a controller called “admin”. I also defined a function in the corresponding controller called “show\_admin”. But each time I browsed to “[http://localhost:3000/](http://localhost:3000/) admins/show\_admin”. I always get the following error: No action responded to show. Actions: index, login, logout, and show\_admin It seemed that ror find my action, But it failed to show the action. On the other hand, it tried to show the “show” action. But I don’t have such an action. I wonder if anyone here can solve my problem. I searched the internet. I found someone said that it might be related to the namespacing system. But I can find the detailed description since it was a google cache. Thanks for any hints or advice in advance. ---
**Author:** ![kun\_niu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/8c91f0/32.png) [@kun\_niu](https://www.ruby-forum.com/u/kun_niu)\ **Post date:** [September 20, 2010, 12:10pm UTC](https://www.ruby-forum.com/t/problem-about-no-action-error/195228/2 "2010-09-20T12:10:34Z")
On Sep 20, 5:17 am, kun niu [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > have such an action. I wonder if anyone here can solve my problem. I > searched the internet. I found someone said that it might be related > to the namespacing system. But I can find the detailed description > since it was a google cache. What in your routes.rb? if you’ve got map.resources :admins, then the routes that get create assume that admins/blah means ‘show the admin with id blah’ Fred ---
**Author:** ![kun\_niu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/8c91f0/32.png) [@kun\_niu](https://www.ruby-forum.com/u/kun_niu)\ **Post date:** [September 20, 2010, 1:27pm UTC](https://www.ruby-forum.com/t/problem-about-no-action-error/195228/3 "2010-09-20T13:27:15Z")
In that action do you want to show all the admins or just one? if you are trying yo list all the admins, you can have a restful route or a named route. please say what you want to do. ---
**Author:** ![kun\_niu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/8c91f0/32.png) [@kun\_niu](https://www.ruby-forum.com/u/kun_niu)\ **Post date:** [September 20, 2010, 6:42pm UTC](https://www.ruby-forum.com/t/problem-about-no-action-error/195228/4 "2010-09-20T18:42:13Z")
Hi kun niu, I think, this is common problem for all ROR beginners. First you check it out, following. app/controllers =\> admin\_controllers.rb app/views =\> admin/\<.rhtml (i.e admin/show\_admin.rhtml, admin/login.rhtml, etc…) In admin\_controller.rb like follow class AdminController \< ApplicationController def show\_admin #your content end def login #your content end def \<\<\>\> #your content end end then open your browser, type in the address bar =\> “[http://localhost](http://localhost): 3000/admin/show\_admin”. I hope this will solve your problem. ---
**Author:** ![kun\_niu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/k/8c91f0/32.png) [@kun\_niu](https://www.ruby-forum.com/u/kun_niu)\ **Post date:** [September 20, 2010, 1:35pm UTC](https://www.ruby-forum.com/t/problem-about-no-action-error/195228/5 "2010-09-20T13:35:14Z")
kun niu wrote: > Hi all, > I’m a ROR newbie. I’m writing ROR application on Ubuntu 10.04, ruby > 1.8.7-p249, rails 2.3.5, mongrel 1.1.5. I wrote a controller called > “admin”. Okay, that is nice… > I also defined a function in the corresponding controller > called “show\_admin”. Not so nice… Rails works the best and the easiest if you adhere to the Rails conventions. You should start with a basic tutorial somewhere and follow it, trying to understand how it all fits. My favorite way to get people started is to tell them to scaffold a basic application, then see what the generator created, and understand how it works. Later, worry about an admin, or namespacing. script/generate scaffold person last\_name:string first\_name:string (that creates an initial db migration, controller, and views for a person) rake db:migrate (create the table) script/server Now browse to your app, and add a person or two, noting which link you clicked to do what. Now look at the application code AND your log file to see how Rails is wired togehter > But each time I browsed to “[http://localhost:3000/](http://localhost:3000/) > admins/show\_admin”. I always get the following error: > No action responded to show. Actions: index, login, logout, and > show\_admin > It seemed that ror find my action, But it failed to show the action. No, that’s not correct. Unless you updated your routes.rb file and restarted your server, you don’t have a ‘show\_admin’ routing. And you shouldn’t have one, that very un-Railsy. > On the other hand, it tried to show the “show” action. But I don’t > have such an action. I wonder if anyone here can solve my problem. I > searched the internet. I found someone said that it might be related > to the namespacing system. But I can find the detailed description > since it was a google cache. > Thanks for any hints or advice in advance.