# Flickr demo screencast

**URL:** <https://www.ruby-forum.com/t/flickr-demo-screencast/53642>\
**Category:** Rails\
**Created:** [February 12, 2006, 11:19pm UTC](https://www.ruby-forum.com/t/flickr-demo-screencast/53642 "2006-02-12T23:19:04Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![mwe](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/258eb7/32.png) [@mwe](https://www.ruby-forum.com/u/mwe)\
**Post date:** [February 12, 2006, 11:19pm UTC](https://www.ruby-forum.com/t/flickr-demo-screencast/53642/1 "2006-02-12T23:19:04Z")

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Hi,

I’m new to Ruby and Ruby on Rails. Yesterday I just received the Agile  
Web D. with Rails book.

Now I wanted to recreate the Flickr demo screencast  
([http://www.rubyonrails.com/screencasts](http://www.rubyonrails.com/screencasts)) just for fun to see it live.  
But unfortunately when I start my server I get some warnings:

g5:~/ruby/flickr mw$ ruby script/server  
=\> Booting lighttpd (use ‘script/server webrick’ to force WEBrick)  
=\> Rails application started on [http://0.0.0.0:3000](http://0.0.0.0:3000)  
=\> Call with -d to detach (requires absolute paths in  
config/lighttpd.conf)  
=\> Ctrl-C to shutdown server (see config/lighttpd.conf for options)  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:274:  
warning: already initialized constant KNOWN\_OPTIONS  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:279:  
warning: already initialized constant DEF\_KEY\_ATTRIBUTES  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:280:  
warning: already initialized constant DEF\_ROOT\_NAME  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:281:  
warning: already initialized constant DEF\_CONTENT\_KEY  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:282:  
warning: already initialized constant DEF\_XML\_DECLARATION  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:283:  
warning: already initialized constant DEF\_ANONYMOUS\_TAG  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:284:  
warning: already initialized constant DEF\_FORCE\_ARRAY  
/usr/local/lib/ruby/gems/1.8/gems/xml-simple-1.0.7/lib/xmlsimple.rb:285:  
warning: already initialized constant DEF\_INDENTATION

This is how I installed the gems:

g5:~/ruby/flickr mw$ sudo gem install -r flickr  
Attempting remote installation of ‘flickr’  
Updating Gem source index for: [http://gems.rubyforge.org](http://gems.rubyforge.org)  
Install required dependency xml-simple? [Yn] Y  
Successfully installed flickr-1.0.0  
Successfully installed xml-simple-1.0.7

Moreover, when I access [http://localhost:3000/flickr](http://localhost:3000/flickr), the page is blank!  
But I have all the same files in the same categories like in the  
screencast. What’s the deal?

Thanks for your patience and responses in advance.

Michal

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<div class="post-metadata">

**Author:** ![mwe](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/258eb7/32.png) [@mwe](https://www.ruby-forum.com/u/mwe)\
**Post date:** [February 12, 2006, 11:20pm UTC](https://www.ruby-forum.com/t/flickr-demo-screencast/53642/2 "2006-02-12T23:20:39Z")

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Maybe this will help:

Ruby version 1.8.4 (powerpc-darwin8.4.0)  
RubyGems version 0.8.11  
Rails version 1.0.0  
Active Record version 1.13.2  
Action Pack version 1.11.2  
Action Web Service version 1.0.0  
Action Mailer version 1.1.5  
Active Support version 1.2.5  
Application root /Users/mw/ruby/flickr  
Environment development  
Database adapter mysql

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<div class="post-metadata">

**Author:** ![mwe](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/258eb7/32.png) [@mwe](https://www.ruby-forum.com/u/mwe)\
**Post date:** [February 12, 2006, 11:29pm UTC](https://www.ruby-forum.com/t/flickr-demo-screencast/53642/3 "2006-02-12T23:29:25Z")

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I have those warnings on my dev setup as well when running an app that  
gets images from Flickr but it still runs fine. I can’t figure out  
where the bug is but it shouldn’t effect how things run. Just  
annoying at startup.

Your blank page is probably due to something else like not being able  
to connect to your database. Check your database.yml settings. Even  
if your page doesn’t call the database, the app will fail if it can’t  
access the database server.

Mike

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<div class="post-metadata">

**Author:** ![mwe](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/258eb7/32.png) [@mwe](https://www.ruby-forum.com/u/mwe)\
**Post date:** [February 12, 2006, 11:59pm UTC](https://www.ruby-forum.com/t/flickr-demo-screencast/53642/4 "2006-02-12T23:59:07Z")

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Michael E. wrote:

> Your blank page is probably due to something else like not being able  
> to connect to your database. Check your database.yml settings. Even  
> if your page doesn’t call the database, the app will fail if it can’t  
> access the database server.

Thanks, that might have been the case. Something had to be wrong with  
MySQL. After I restarted it and launched the webserver again, everything  
went fine. Thanks!