Warning: main() [function.main]: Failed opening

Warning: main() [function.main]: Failed opening '../webpage/pingyiintroduce/webpageall/' for inclusion (include_path='.;c:\php4\pear') in e:\pingyiwebroot\pyweb\pingyiintroduce\inchtmlshow.php on line 87

这个提示是什么意思？？

inchtmlshow.php中包含另一文件找不到。