使用wickedpdf和wkhtmltopdf在rails中生成pdf

Question

我正在使用wickedpdf和wkhtmltopdf使用rails 2.3。在生成pdf时，它在第一时间正常工作。当我第二次生成pdf时，它会生成RunTime Error 它显示如下的错误。

XXXXXController中的RuntimeError＃xxxxxx_pdf

PDF could not be generated!

Error: Failed loading page file:///tmp/wicked_header_pdf_3705_0.html?page=1&section=&
subsection=&frompage=1&subsubsection=&topage=1&webpage=foobar&time=10:55 AM&date=20/03/14
(sometimes it will work just to ignore this error with --ignore-load-errors)

Error: Failed loading page file:///tmp/wicked_footer_pdf_3705_0.html?page=1&section=&
subsection=&frompage=1&subsubsection=&topage=1&webpage=foobar&time=10:55 AM&date=20/03/14 
(sometimes it will work just to ignore this error with --ignore-load-errors)

QPaintDevice: Cannot destroy paint device that is being painted

Segmentation fault (core dumped)

请建议避免此问题。

提前谢谢你 mayara rajesh