# What 's wrong with my fxruby? **URL:** \ **Category:** Ruby\ **Created:** [May 6, 2010, 5:58am UTC](https://www.ruby-forum.com/t/what-s-wrong-with-my-fxruby/188123 "2010-05-06T05:58:02Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 6, 2010, 5:58am UTC](https://www.ruby-forum.com/t/what-s-wrong-with-my-fxruby/188123/1 "2010-05-06T05:58:02Z")
pt@pt-laptop:~$ sudo gem install fxruby Successfully installed fxruby-1.6.20-x86-linux 1 gem installed Installing ri documentation for fxruby-1.6.20-x86-linux… Updating class cache with 2834 classes… Installing RDoc documentation for fxruby-1.6.20-x86-linux… pt@pt-laptop:~$ irb irb(main):001:0\> require ‘fox16’ LoadError: /usr/local/ruby/lib/ruby/gems/1.9.1/gems/fxruby-1.6.20-x86-linux/lib/fox16.so: undefined symbol: rb\_thread\_pending - /usr/local/ruby/lib/ruby/gems/1.9.1/gems/fxruby-1.6.20-x86-linux/lib/fox16.so from /usr/local/ruby/lib/ruby/gems/1.9.1/gems/fxruby-1.6.20-x86-linux/lib/fox16.rb:6:in `require' from /usr/local/ruby/lib/ruby/gems/1.9.1/gems/fxruby-1.6.20-x86-linux/lib/fox16.rb:6:in`\’ from (irb):1:in `require' from (irb):1 from /usr/local/ruby/bin/irb:12:in`’ irb(main):002:0\> ---
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 6, 2010, 7:30am UTC](https://www.ruby-forum.com/t/what-s-wrong-with-my-fxruby/188123/2 "2010-05-06T07:30:05Z")
somen people say ruby1.9 don’t surpport wxruby,so i change into ruby 1.8 there is problem too: pt@pt-laptop:~$ sudo find / -name ‘fox16’ [sudo] password for pt: /var/lib/gems/1.8/gems/fxruby-1.6.20-x86-linux/ext/fox16 /var/lib/gems/1.8/gems/fxruby-1.6.20-x86-linux/lib/fox16 /var/lib/gems/1.8/doc/fxruby-1.6.20-x86-linux/rdoc/files/lib/fox16 pt@pt-laptop:~$ irb irb(main):001:0\> require ‘fox16’ LoadError: no such file to load – fox16 from (irb):1:in `require’ from (irb):1 from :0 irb(main):002:0\> you can see fox16 is installed on my system,but i can’t require it,why? ---
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 6, 2010, 2:07pm UTC](https://www.ruby-forum.com/t/what-s-wrong-with-my-fxruby/188123/3 "2010-05-06T14:07:58Z")
On Thu, May 06, 2010 at 02:30:07PM +0900, Pen T. wrote: > LoadError: no such file to load – fox16 > from (irb):1:in `require’ > from (irb):1 > from :0 > irb(main):002:0\> > > you can see fox16 is installed on my system,but i can’t require > it,why? irb(main):001:0\> require ‘fox16’ LoadError: no such file to load – fox16 from (irb):1:in `require’ from (irb):1 from :0 irb(main):002:0\> require ‘rubygems’ =\> true irb(main):003:0\> require ‘fox16’ =\> true irb(main):004:0\> You first need to load rubygems. Dan ---
**Author:** ![luofeiyu](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9de0a6/32.png) [@luofeiyu](https://www.ruby-forum.com/u/luofeiyu)\ **Post date:** [May 28, 2010, 4:18pm UTC](https://www.ruby-forum.com/t/what-s-wrong-with-my-fxruby/188123/4 "2010-05-28T16:18:29Z")
On Thu, May 6, 2010 at 9:29 AM, Pen T. [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote: > undefined symbol: rb\_thread\_pending - > Resurrecting this thread because I faced the same issue - the solution > is simply to go to fxruby’s rubyforge download page: [http://rubyforge.org/frs/?group\_id=300&release\_id=41247](http://rubyforge.org/frs/?group_id=300&release_id=41247) And download fxruby-1.6.20-gem (the one labelled “any” rather than “linux”). Manually downloading and installing this will recompile the extension from source against ruby 1.9, rather than using the fxruby-linux gem which is presumably compiled against ruby 1.8. martin