Can't recognize object or face

[atiilla]

`=== training-images/unknown/8-13.jpg ===

• Already found, skipping.
  /root/torch/install/bin/luajit: /robot/batch-represent/dataset.lua:219: Class has zero samples: car
  stack traceback:
  [C]: in function 'error'
  /robot/batch-represent/dataset.lua:219: in function '__init'
  /root/torch/install/share/lua/5.1/torch/init.lua:91: in function </root/torch/install/share/lua/5.1/torch/init.lua:87>
  [C]: in function 'dataLoader'
  /robot/batch-represent/batch-represent.lua:19: in function 'batchRepresent'
  /robot/system/../batch-represent/main.lua:42: in main chunk
  [C]: in function 'dofile'
  /root/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:145: in main chunk
  [C]: at 0x00406670
  `