Redmine

• MySQL5.0.2
• ruby3.0
• abstract (1.0.0)
• actionmailer (3.0.0)
• actionpack (3.0.0)
• activemodel (3.0.0)
• activerecord (3.0.0)
• activeresource (3.0.0)
• activesupport (3.0.0)
• arel (1.0.1)
• builder (2.1.2)
• bundler (1.0.2)
• erubis (2.6.6)
• i18n (0.4.1)
• mail (2.2.7)
• mime-types (1.16)
• minitest (1.6.0)
• mysql (2.8.1)
• polyglot (0.3.1)
• rack (1.2.1, 1.0.1)
• rack-mount (0.6.13)
• rack-test (0.5.6)
• rails (3.0.0)
• railties (3.0.0)
• rake (0.8.7)
• rdoc (2.5.8)
• thor (0.14.3)
• treetop (1.4.8)
• tzinfo (0.3.23)

and I just follow the installation guide(http://www.redmine.org/wiki/redmine/RedmineInstall#Installation), everything is OK at first, but when I run the command: ruby script/server webrick -e production, it prompt as follow:
<internal:lib/rubygems/custom_require>:29:in `require': no such file to load -- script/../config/boot (LoadError)
from <internal:lib/rubygems/custom_require>:29:in `require'
from script/about:2:in `<main>'

and, when I install ruby, I used a target directory "/usr/local/ruby". I found some infomation on web that said maybe that is the reason...

but how can I fix it? or it's a bug of redmine-1.0.2?