include('Mail.PHP');
include('Mail/mime.PHP');

我收到以下错误：

Warning: include(Mail.PHP) [function.include]: Failed to open stream: No such file or directory in /var/www/vhosts/domain.co.uk/httpdocs/mail_mime/index.PHP  on line 2

Warning: include() [function.include]: Failed opening 'Mail.PHP' for inclusion (include_path='.:/usr/lib/PHP/PEAR:/usr/lib/PHP/modules') in /var/www/vhosts/domain.co.uk/httpdocs/mail_mime/index.PHP on line 2

Warning: include(Mail/mime.PHP) [function.include]: Failed to open stream: No such file or directory in /var/www/vhosts/domain.co.uk/httpdocs/mail_mime/index.PHP on line 3

Warning: include() [function.include]: Failed opening 'Mail/mime.PHP' for inclusion (include_path='.:/usr/lib/PHP/PEAR:/usr/lib/PHP/modules') in /var/www/vhosts/domain.co.uk/httpdocs/mail_mime/index.PHP on line 3

这2个文件肯定在文件夹中：

/usr/lib/PHP/PEAR/Mail.PHP
/usr/lib/PHP/PEAR/Mail/mime.PHP

pear list告诉我安装了所需的软件包,并且没有遗漏的依赖项