The perfect server error

Hey, i've just started going through 'The Perfect Server - CentOS 5.2' guide... http://www.howtoforge.com/perfect-server-centos-5.2-ispconfig-3

When on step 11 and rebuilding postfix fpm with quota and mysql support i get the following error:

Does anyone know what has caused this? Because i have followed the quide step for step, on a completely new install.

 

That's strange, although it is possible that a few things have changed since I wrote the tutorial...