Unexpected error on your webpage home – function.main failed to open stream

Warning: main(/home/USERNAME/public_html/wp-content/themes/limau-orange-01/index.php) [function.main]: failed to open stream: Permission denied in /home/USERNAME/public_html/wp-includes/template-loader.php on line 20Warning: main(/home/USERNAME/public_html/wp-content/themes/limau-orange-01/index.php) [function.main]: failed to open stream: Permission denied in /home/USERNAME/public_html/wp-includes/template-loader.php on line 20Warning: main() [function.include]: Failed opening ‘/home/USERNAME/public_html/wp-content/themes/limau-orange-01/index.php’ for inclusion (include_path=’.:/usr/php4/lib/php:/usr/local/php4/lib/php’) in /home/USERNAME/public_html/wp-includes/template-loader.php on line 20

The above error was encountered by me last day after I edited my blogs template files. I was on Linux and was using Gedit to edit files. So what caused the above error. As it turned out the default Linux Access Permission was the villain. It can also be clearly seen from the error message that a Permission Denied error was produced.

By default Linux applies the following set of access permissions to all files

Owner : rw

Group : Forbidden

Others : Forbidden

when using Konqueror. So when WP tried to access these files it returned an error because WordPress was not the owner of the file. It took some time for me to figure it out. So checkout twice when you are working on Linux and uploading files to your server and thank wordPress for good error reports.

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