Training error

[Haithienbao]

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When i try to train this code, i get error like this: data created data loaded data created data loaded init trainer training => Training epoch # 1 /torch/install/bin/luajit: /torch/install/share/lua/5.1/threads/threads.lua:183: [thread 2 callback] ./datasets/lane.lua:22: attempt to index local 'label' (a number value) stack traceback: ./datasets/lane.lua:22: in function 'get' ./dataloader.lua:96: in function <./dataloader.lua:92> [C]: in function 'xpcall' /torch/install/share/lua/5.1/threads/threads.lua:234: in function 'callback' /torch/install/share/lua/5.1/threads/queue.lua:65: in function </torch/install/share/lua/5.1/threads/queue.lua:41> [C]: in function 'pcall' /torch/install/share/lua/5.1/threads/queue.lua:40: in function 'dojob' [string " local Queue = require 'threads.queue'..."]:15: in main chunk stack traceback: [C]: in function 'error' /torch/install/share/lua/5.1/threads/threads.lua:183: in function 'dojob' ./dataloader.lua:157: in function '(for generator)' ./train.lua:58: in function 'train' main.lua:51: in main chunk [C]: in function 'dofile' /torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk [C]: at 0x55c09631d570 load image failed! load image failed!

I run this code in google colab, cuda10, Could you have me solve this problem? Thank you!