Ruby: neo4j gem – LoadError: no such file to load — active_support/core_ext/class/inheritable_attributes
I’ve been playing around with neo4j again over the past couple of days using the neo4j.rb gem to build up a graph.
I installed the gem but then ended up with the following error when I tried to ‘require neo4j’ in ‘irb’:
LoadError: no such file to load -- active_support/core_ext/class/inheritable_attributes require at org/jruby/RubyKernel.java:1033 require at /Users/mneedham/.rbenv/versions/jruby-1.6.7/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:36 (root) at /Users/mneedham/.rbenv/versions/jruby-1.6.7/lib/ruby/gems/1.8/gems/neo4j-1.3.1-java/lib/neo4j.rb:9 require at org/jruby/RubyKernel.java:1033 require at /Users/mneedham/.rbenv/versions/jruby-1.6.7/lib/ruby/gems/1.8/gems/neo4j-1.3.1-java/lib/neo4j.rb:59 (root) at src/main/ruby/neo_test.rb:2
It seems a few others have come across this problem as well and the problem seems to be that ActiveSupport 3.2 isn’t yet supported by the gem so we need to use an earlier version of that.
There were a few suggestions in the comments but it was the following that worked for me:
sudo gem uninstall railties sudo gem install railties --version 3.1