使用im2rec生成lst对应的rec时时出现了TypeError: object of type 'NoneType' has no len()

imread read blank (None) image for file: X:\Users\Administrator\examples\红花\1.jpg
Traceback (most recent call last):
File “X:\anna\Lib\site-packages\mxnet\tools\im2rec.py”, line 386, in
record.write_idx(item[0], s)
File “X:\anna\lib\site-packages\mxnet\recordio.py”, line 337, in write_idx
self.write(buf)
File “X:\anna\lib\site-packages\mxnet\recordio.py”, line 177, in write
ctypes.c_size_t(len(buf))))
TypeError: object of type ‘NoneType’ has no len()

这是我在cmd中敲的源码:
python X:\anna\Lib\site-packages\mxnet\tools\im2rec.py X:\Users\Administrator\my_test.lst X:\Users\Administrator\examples\红花 --center-crop --resize 224 --pack-label

仔细又读了一遍使用方法:
Options for creating database:

--pass-through whether to skip transformation and save image as is

(default: False)

--resize RESIZE resize the shorter edge of image to the newsize,

original images will be packed by default. (default:

0)

--center-crop specify whether to crop the center image to make it

rectangular. (default: False)

--quality QUALITY JPEG quality for encoding, 1-100; or PNG compression

for encoding, 1-9 (default: 95)

--num-thread NUM_THREAD

number of thread to use for encoding. order of images

will be different from the input list if >1. the input

list will be modified to match the resulting order.

(default: 1)

--color {-1,0,1} specify the color mode of the loaded image. 1: Loads a

color image. Any transparency of image will be

neglected. It is the default flag. 0: Loads image in

grayscale mode. -1:Loads image as such including alpha

channel. (default: 1)

--encoding {.jpg,.png}

specify the encoding of the images. (default: .jpg)

--pack-label Whether to also pack multi dimensional label in the

record file (default: False)

我该怎么解决这个错误呀?

读入的图像有可能有损,opencv返回了一个None

谢谢。
在尝试更换了图片以后,还是报了相同的错误。我…