Hi,
I'm trying to creating training data for Japanese (jpn.traineddata).
I run 'tesstrain.sh' with '--linedataonly' option, and the script has finished ( return code 0 ) .
But log file has contained some error messages ( repeated 22 times ).
```
$ ../tesseract-ocr/training/tesstrain.sh --fonts_dir /usr/share/fonts --lang jpn --linedata_only --noextract_font_properties --langdata_dir ../langdata --tessdata_dir /usr/local/share --output_dir ~/work/jpntrain
```
---
[Sun Apr 2 07:42:30 UTC 2017] /usr/local/bin/tesseract /tmp/tmp.pwcwGMb5hs/jpn/jpn.IPAPMincho.exp0.tif /tmp/tmp.pwcwGMb5hs/jpn/jpn.
IPAPMincho.exp0 lstm.train ../langdata/jpn/jpn.config
[Sun Apr 2 07:42:30 UTC 2017] /usr/local/bin/tesseract /tmp/tmp.pwcwGMb5hs/jpn/jpn.IPAGothic.exp0.tif /tmp/tmp.pwcwGMb5hs/jpn/jpn.I
PAGothic.exp0 lstm.train ../langdata/jpn/jpn.config
Error opening data file /usr/local/share/tessdata/jpn_vert.traineddata
Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory.
Failed loading language 'jpn_vert'
---
It seems that 'tesstrain.sh' requires 'jpn_vert.traineddata`, but this file not provide on tessdata repository.
How I get this file? Or, Can I substitute 'jpn.traineddata' for 'jpn_vert.traineddata' ?
I've found that there is `jpn_vert' directory on langdata repository, but only some config files.
Thanks.