puppet-agent[28934]: Could not get latest version: undefined method `[]' for nil:NilClass
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/provider/package/gem.rb:111:in `latest'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/type/package.rb:139:in `block in insync?'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/type/package.rb:126:in `each'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/type/package.rb:126:in `insync?'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/property.rb:314:in `safe_insync?'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction/resource_harness.rb:117:in `sync_if_needed'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction/resource_harness.rb:81:in `perform_changes'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction/resource_harness.rb:20:in `evaluate'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction.rb:174:in `apply'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction.rb:187:in `eval_resource'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction.rb:117:in `call'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction.rb:117:in `block (2 levels) in evaluate'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util.rb:327:in `block in thinmark'
puppet-agent[28934]: /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util.rb:326:in `thinmark'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction.rb:117:in `block in evaluate'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/graph/relationship_graph.rb:118:in `traverse'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction.rb:108:in `evaluate'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/resource/catalog.rb:164:in `block in apply'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util/log.rb:149:in `with_destination'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/transaction/report.rb:108:in `as_logging_destination'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/resource/catalog.rb:163:in `apply'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/configurer.rb:125:in `block in apply_catalog'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util.rb:161:in `block in benchmark'
puppet-agent[28934]: /usr/lib/ruby/1.9.1/benchmark.rb:295:in `realtime'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util.rb:160:in `benchmark'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/configurer.rb:124:in `apply_catalog'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/configurer.rb:192:in `run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:44:in `block (4 levels) in run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent/locker.rb:20:in `lock'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:44:in `block (3 levels) in run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:114:in `with_client'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:41:in `block (2 levels) in run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:84:in `block in run_in_fork'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:81:in `fork'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:81:in `run_in_fork'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:40:in `block in run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application.rb:179:in `call'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application.rb:179:in `controlled_run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/agent.rb:38:in `run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/daemon.rb:163:in `block in run_event_loop'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/scheduler/job.rb:49:in `call'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/scheduler/job.rb:49:in `run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/scheduler/scheduler.rb:39:in `block in run_ready'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/scheduler/scheduler.rb:34:in `each'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/scheduler/scheduler.rb:34:in `run_ready'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/scheduler/scheduler.rb:11:in `run_loop'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/daemon.rb:179:in `run_event_loop'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/daemon.rb:142:in `start'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application/agent.rb:377:in `main'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application/agent.rb:323:in `run_command'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application.rb:364:in `block (2 levels) in run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application.rb:470:in `plugin_hook'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application.rb:364:in `block in run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util.rb:478:in `exit_on_fail'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/application.rb:364:in `run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util/command_line.rb:137:in `run'
puppet-agent[28934]: /usr/lib/ruby/vendor_ruby/puppet/util/command_line.rb:91:in `execute'
puppet-agent[28934]: /usr/bin/puppet:4:in `<main>'
My Environment is Ubuntu 12.0.4 with puppet 3.4.3 and ruby 1.9.1 (1.9.3p0) - which according to the puppet release notes is buggy?