Anyone else getting this error? I didn't find any recent mention of it.

gem install syntax --backtrace
ERROR:  While executing gem ... (ArgumentError)
     invalid date
	/usr/local/lib/ruby/1.8/date.rb:727:in `new'
	/usr/local/lib/ruby/1.8/yaml.rb:133:in `node_import'
	/usr/local/lib/ruby/1.8/yaml.rb:133:in `load'
	/usr/local/lib/ruby/1.8/yaml.rb:133:in `load'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/specification.rb:476:in 
`from_yaml'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:182:in 
`load_gemspec'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:50:in 
`initialize'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_reader.rb:63:in 
`each'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_reader.rb:54:in 
`loop'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_reader.rb:54:in 
`each'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:31:in 
`initialize'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:16:in `new'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package/tar_input.rb:16:in 
`open'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/package.rb:56:in `open'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/format.rb:67:in `from_io'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/format.rb:51:in 
`from_file_by_path'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/format.rb:50:in `open'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/format.rb:50:in 
`from_file_by_path'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/installer.rb:119:in `initialize'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/dependency_installer.rb:239:in 
`new'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/dependency_installer.rb:239:in 
`install'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/dependency_installer.rb:222:in 
`each'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/dependency_installer.rb:222:in 
`install'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/commands/install_command.rb:118:in 
`execute'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/commands/install_command.rb:115:in 
`each'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/commands/install_command.rb:115:in 
`execute'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/command.rb:257:in `invoke'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/command_manager.rb:132:in 
`process_args'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/command_manager.rb:102:in `run'
	/usr/local/lib/ruby/site_ruby/1.8/rubygems/gem_runner.rb:58:in `run'
	/usr/local/bin/gem:21

-- 
       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407