PHP: Error PHPDocumentor: phpDocumentorTransformerWriterExceptionRequirementMissing] The XSL writer was unable to find your XSLTProcessor; please check if you have installed the PHP XSL extension or XSLCache extension

Pasaba al intentar crear reports con el template Zend porque el módulo xsl del php no estaba instalado.

Para instalarlo en una ubuntu 14.04 hice:

sudo apt-get install php5-xsl