Ubuntu 12.04 seems to have Tesseract 3.0 installed. As the Tesseract docs say, you have to install the language support packages your self, they are no longer contained in the software distro (as with Tesseract 2.0).
So this might be an Ubuntu packaging problem.
see: https://bugs.launchpad.net/sikuli/+bug/979524
Ubuntu 12.04 seems to have Tesseract 3.0 installed.
As the Tesseract docs say, you have to install the language support packages your self, they are no longer contained in the software distro (as with Tesseract 2.0).
So this might be an Ubuntu packaging problem.
see: https:/ /bugs.launchpad .net/sikuli/ +bug/979524