ERROR: undefined method `timestamp' for nil:NilClass ERROR: /usr/lib/ruby/site_ruby/1.8/flv/stream.rb:285:in `lasttimestamp' ERROR: /usr/lib/ruby/site_ruby/1.8/flv/stream.rb:274:in `duration' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:181:in `add_meta_data_tag' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:137:in `update' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:47:in `send' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:47:in `execute!' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:46:in `each' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:46:in `execute!' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:206:in `process_files' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2/base.rb:44:in `execute!' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2.rb:168:in `execute!' ERROR: /usr/lib/ruby/site_ruby/1.8/flvtool2.rb:228 ERROR: /usr/bin/flvtool2:2:in `require' ERROR: /usr/bin/flvtool2:2