Plugin not working Redmine 2.5.0 about redmine_mention_plugin

[Nyholm]

I do also have problems. I cant say if it is Redmine, Ruby or something else...

Redmine version                2.5.1.stable
  Ruby version                   1.8.7-p358 (2012-02-08) [x86_64-linux]
  Rails version                  3.2.17

Output

$ rake redmine:plugins NAME=redmine_mention_plugin RAILS_ENV=production
rake aborted!
/opt/redmine/plugins/redmine_mention_plugin/lib/mention/user_patch.rb:9: syntax error, unexpected '>'
        scope :with_name,->(name) { where('LCASE(CONCAT(f...
                           ^
/opt/redmine/plugins/redmine_mention_plugin/lib/mention/user_patch.rb:9: syntax error, unexpected '{', expecting kEND
...   scope :with_name,->(name) { where('LCASE(CONCAT(firstname...
                              ^
/opt/redmine/plugins/redmine_mention_plugin/lib/mention/user_patch.rb:9: syntax error, unexpected '}', expecting kEND

[stpl]

@Nyholm, You are on old Ruby version. Plugin supports 1.9.2 and above. This issue exists with the older ruby versions. You can refer this http://stackoverflow.com/questions/7780240/syntax-error-unexpected-expecting-in-stripe-form-using-rails-3 .

[Nyholm]

Thank you @stpl for quick reply.