Fatal error: Declaration of Zend_Pdf_FileParserDataSource_File::__construct()

[redqueensoft]

I get this error when I try to print an invoice:

Fatal error: Declaration of Zend_Pdf_FileParserDataSource_File::__construct() must be compatible with Zend_Pdf_FileParserDataSource::__construct() in /home/theanima/public_html/lib/Zend/Pdf/FileParserDataSource/File.php on line 41

I believe that I have upgraded to CE1.9 but it says it is still CE1.5.1 on the bottom of the window.

[Mukesh Tiwari]

Fixed it by change in this function 

lib/Zend/Pdf/FileParserDataSource.php.

Change 

abstract public function __construct();

to

abstract public function __construct($filePath);

For more details follow this link Magento PHP 5.4 PDF invoice Zend error