#sudo ldconfig

This is a pretty specific solution for a pretty specific install. When compiling Tesseract 2.x, a workaround was needed to point ldconfig in the correct place: export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib. However, if you try and build Tesseract 3.00 and up, you'll get this when running sudo ldconfig:

/usr/local/lib is not a known library type

Solution:

cd etc (must be at disk level)

sudo vi ld.so.conf

Remove the following line (pressing i to start editing):

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

Save and quit by pressing :x and then enter. Read more on the editing commands here.

You should be able to run sudo ldconfig now without an issue.