Hello everyone

I used ocropus (in its original version), then ocropy (improved version), 
now I would like to use ocropus3 (in its new version). I wanted to start 
learning on my database with the following command:

ocroline-train -d myDataBase.gz -t myDataBase.gz -T 100 -o testmodel 
--epochs 1

but I got the following error:

/usr/local/lib/python2.7/dist-packages/matplotlib/__init__.py:962: 
UserWarning: Duplicate key in file 
"/home/ubuntu/.config/matplotlib/matplotlibrc", line # 2
  (fname, cnt))
/usr/local/lib/python2.7/dist-packages/matplotlib/__init__.py:962: 
UserWarning: Duplicate key in file 
"/home/ubuntu/.config/matplotlib/matplotlibrc", line # 3
  (fname, cnt))
['CenterNormalizer', 'LineRecognizer', '__builtins__', '__doc__', 
'__file__', '__name__', '__package__', '__path__', 'lineest', 'recognizer']
Traceback (most recent call last):
  File "/ usr / local / bin / ocroline-train", line 214, in <module>
    sample = training_data.next ()
  File "/usr/local/lib/python2.7/dist-packages/dlinputs/filters.py", line 
266, in map
    for sample in data:
  File "/usr/local/lib/python2.7/dist-packages/dlinputs/filters.py", line 
266, in map
    for sample in data:
  File "/usr/local/lib/python2.7/dist-packages/dlinputs/filters.py", line 
508, in batchedbuckets
    for sample in data:
  File "/usr/local/lib/python2.7/dist-packages/dlinputs/filters.py", line 
235, in ren
    raise ValueError ("missing keys, got {}, want {}". format (sample.keys 
(), kw)
ValueError: missing keys, got ['__source__', 'txt', '__key__', 'index'], 
want {'image': 'png', 'transcript': 'txt'}

knowing that my database respects the file format of the uw3 database used 
by the author of ocropus.
can someone help me please?

thank you

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