该错误发生在预热缓存并且已满时：
PHP Fatal error: Class 'FPDF' not found in /home/shop/public_html/releases/20150122171219/Packages/Sites/Mystuff.ModelSite/Classes/Mystuff/ModelSite/Service/InvoiceService.php on line 14
Uncaught Exception
Execution of subprocess failed with exit code 255 without any further
output. (Please check your PHP error log for possible Fatal errors)
More Information
Exception code #1355480641
File /home/shop/public_html/releases/20150122171219/Packages/Framework/TYPO3.Flow/Classes/TYPO3/Flow/Core/Booting/Scripts.php line 531
Exception reference #201504011936306ce58c
我以前见过这个错误并解决了它，但我无法记住我是如何也找不到我确定我所做的笔记。快把我逼疯了。奇怪的是，实时服务器收到此错误，但我的开发服务器没有，这是实时服务器的副本。fpdf.php 在那里。
谢谢