I remember getting that error in the past, and at the time googling for that token gave few results, so it was a slightly bigger deal than you would think.
99% of the time the cause was: you are on PHP 5.2, but we're trying to use PHP 5.3 late static binding ( `static::someMethod()` ).
99% of the time the cause was: you are on PHP 5.2, but we're trying to use PHP 5.3 late static binding ( `static::someMethod()` ).