failed to open stream: Permission denied in [...]t/plugins/all-in-one-seo-pack/aioseop.class.php on line 924 All in One SEO Pack Troubleshooting Forum

PHP Warning:  error_log([...]/wp-content/plugins/all-in-one-seo-pack/all_in_one_seo_pack.log) [<a href='function.error-log'>function.error-log</a>]: failed to open stream: Permission denied in [...]/wp-content/plugins/all-in-one-seo-pack/aioseop.class.php on line 924

I had this warning message for awhile, and I discovered the problem was that the plugin tries to write to a log. Since I don't allow the plugins to be owned by the webserver (and therefor compromise my WP and box), its owned by another user. Making the file all_in_one_seo_pack.log and chowning it to the web user (www-data in my case) fixed this warning:

# touch all_in_one_seo_pack.log

# chown www-data all_in_one_seo_pack.log

Tell us about that next time, will you? :)