Fix Tesseract not found Ubuntu 17.10 for OpenCV and OpenALPR
Sometimes you don't get the packages you need. This short guide will fix that.
1. Back up your current sources list.
sudo mv /etc/apt/sources.list /etc/apt/sources.list_bak
2. Create a new sources list.
sudo nano /etc/apt/sources.list
3. Paste the following contents and save.
deb http://us.archive.ubuntu.com/ubuntu/ artful main restricted deb http://us.archive.ubuntu.com/ubuntu/ artful-updates main restricted deb http://us.archive.ubuntu.com/ubuntu/ artful universe deb http://us.archive.ubuntu.com/ubuntu/ artful-updates universe deb http://us.archive.ubuntu.com/ubuntu/ artful-backports main restricted universe multiverse deb http://archive.canonical.com/ubuntu artful partner deb http://security.ubuntu.com/ubuntu artful-security main restricted deb http://security.ubuntu.com/ubuntu artful-security universe
4. Update your packages list to enable the new sources list.
apt update