# Rdoc reinstall breaks fast-ri - now what? **URL:** \ **Category:** Ruby\ **Created:** [August 4, 2008, 5:30pm UTC](https://www.ruby-forum.com/t/rdoc-reinstall-breaks-fast-ri-now-what/144951 "2008-08-04T17:30:58Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![matt\_neuburg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/4af34b/32.png) [@matt\_neuburg](https://www.ruby-forum.com/u/matt_neuburg)\ **Post date:** [August 4, 2008, 5:30pm UTC](https://www.ruby-forum.com/t/rdoc-reinstall-breaks-fast-ri-now-what/144951/1 "2008-08-04T17:30:58Z")
I am really just not having any luck with rdoc / ri these days. Because the new version of rdoc promised that File#read would finally succeed (automatic lookup of methods in the supercclass), I downloaded it. It didn’t change anything so I rebuilt my documentation from scratch. Now fast-ri is broken. Can anyone divine from this error what’s gone wrong and what I should do? Thx - m. $ qri String /usr/local/lib/ruby/1.8/yaml.rb:133:in `transfer': invalid subclass (TypeError) from /usr/local/lib/ruby/1.8/yaml.rb:133:in`node\_import’ from /usr/local/lib/ruby/1.8/yaml.rb:133:in `load' from /usr/local/lib/ruby/1.8/yaml.rb:133:in`load’ from /usr/local/lib/ruby/1.8/rdoc/ri/ri\_descriptions.rb:72:in `deserialize' from /usr/local/lib/ruby/site_ruby/1.8/fastri/ri_index.rb:354:in`get\_class’ from /usr/local/lib/ruby/site\_ruby/1.8/fastri/ri\_index.rb:354:in `open' from /usr/local/lib/ruby/site_ruby/1.8/fastri/ri_index.rb:354:in`get\_class’ from /usr/local/lib/ruby/site\_ruby/1.8/fastri/ri\_index.rb:352:in `each' from /usr/local/lib/ruby/site_ruby/1.8/fastri/ri_index.rb:352:in`get\_class’ from /usr/local/lib/ruby/site\_ruby/1.8/fastri/ri\_service.rb:209:in `info' from /usr/local/lib/ruby/site_ruby/1.8/fastri/ri_service.rb:422:in`capture\_stdout’ from /usr/local/lib/ruby/site\_ruby/1.8/fastri/ri\_service.rb:208:in `info' from /usr/local/bin/qri:342 from /usr/local/bin/qri:337:in`each’ from /usr/local/bin/qri:337 ---
**Author:** ![matt\_neuburg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/4af34b/32.png) [@matt\_neuburg](https://www.ruby-forum.com/u/matt_neuburg)\ **Post date:** [August 5, 2008, 1:29am UTC](https://www.ruby-forum.com/t/rdoc-reinstall-breaks-fast-ri-now-what/144951/2 "2008-08-05T01:29:49Z")
On Aug 4, 2008, at 08:28 AM, matt neuburg wrote: > (TypeError) > from /usr/local/lib/ruby/1.8/yaml.rb:133:in `node_import' from /usr/local/lib/ruby/1.8/yaml.rb:133:in`load’ > from /usr/local/lib/ruby/1.8/yaml.rb:133:in `load' from /usr/local/lib/ruby/1.8/rdoc/ri/ri_descriptions.rb:72:in`deserialize’ Looks like qri is using RDoc 1.0.1, which is shipped with ruby. RDoc 2’s on-disk YAML format is not backwards compatible with RDoc 1. RDoc 2 can read RDoc 1’s format due to some use of regular expressions. fast-ri would need to be updated to read the RDoc 2 classes. ---
**Author:** ![matt\_neuburg](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/m/4af34b/32.png) [@matt\_neuburg](https://www.ruby-forum.com/u/matt_neuburg)\ **Post date:** [August 6, 2008, 2:20am UTC](https://www.ruby-forum.com/t/rdoc-reinstall-breaks-fast-ri-now-what/144951/3 "2008-08-06T02:20:54Z")
Eric H. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > > $ qri String > > 2 can read RDoc 1’s format due to some use of regular expressions. > > fast-ri would need to be updated to read the RDoc 2 classes. Thx, Eric, as always. If this is right, then it’s all up to fastri. I’ve filed a bug report at [fastri.rubyforge.com](http://fastri.rubyforge.com), and also I’ve notified the TextMate list (TextMate’s RubyMate help functionality uses qri, which is how I discovered the problem). m.