How to solve the problem without having to install tesseract 3.03 when I get a warning:
Warning: You are running an unsupported version of Tesseract. Expecting version 3.03, your version is: 3.02.02 Error opening data file /usr/local/share/tessdata/lus.traineddata Please make sure the TESSDATA_PREFIX environment variable is set to the parent directory of your "tessdata" directory. Failed loading language 'lus' Tesseract couldn't load any languages! Segmentation fault (core dumped)