PHP Error when upgrading to 1.5.0

I have followed the instructions to upgrade to 1.5.0, but when I run the setup to complete upgrade I get the following error:

A PHP Error was encountered

Severity: Compile Error

Message: Can’t use function return value in write context

Filename: controllers/Setup.php

Line Number: 329


Anyone? Can’t use the software now!

What is the point in directing people to the support forum if they have issues, if no support is given?!

I am sorry but I do this entirely in my free time.

But to address your issue: the error is already known and will be addressed in the next version and I hope i can fix the problem in my free time without any compensation or money paid, while I have to study for my next exams.
So stop compaining and wait!