php-doctrine-common software package provides common extensions for doctrine, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install php-doctrine-common
php-doctrine-common is installed in your system.
Make ensure the php-doctrine-common package were installed using the commands given below,
$ sudo dpkg-query -l | grep php-doctrine-common *
You will get with php-doctrine-common package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | PHP |
| Package | php-doctrine-common |
| Version | 2.3.0-1 |
| Description | common extensions for doctrine |
| Sub Section | PHP |