Thin does not work with ruby 1.9.2-p0 and rails 2.3.8

[error400]

if I try to start thin with thin start I get the error

Missing the Rails 2.3.8 gem. Please gem install -v=2.3.8 rails, update your RAILS_GEM_VERSION setting in config/environment.rb for the Rails version you do have installed, or survey out RAILS_GEM_VERSION to use the latest version installed.

Rails Version 2.3.8 is installed on the system.

[macournoyer]

Try starting w/: script/server thin

[error400]

thank you for the information, it works.

but how can I use thin as a cluster in production trough the init script.

there I have the same error in the logs.

[macournoyer]

Try requiring thin (config.gem) in your environment.rb or in your Gemfile

[error400]

Gemfile and environment.rb did not change anything.

The error I posted came from the boor.rb after adding #{load_error.inspect} I got a more specific error about the rack gem. I uninstalled all rack versions and installed 1.1.0 and it worked