Deleted all the content... but it's all still there? I wanted to start from scratch so deleted all the content from my Drupal site. Now I am getting the following error:

Notice: Undefined index: name in system_sort_modules_by_info_name() (line 949 of /Applications/XAMPP/xamppfiles/htdocs/drupal/modules/system/system.admin.inc).

Also, even though I deleted all the content, it is still appearing under the Menus. Do I need to manually remove it from the menus as well? I was hoping that deleting the nodes/content would automatically remove it from the menus...

I deleted the content by going to Administration » Content, selected all the pages/nodes and them selected the "delete selected content" option.
That Undefined index: name in system_sort_modules_by_info_name() error sounds like a broken module not defining its name in its .info file

One possibility is from coder/coder_sniffer/Test/bad.info

see: http://drupal.org/node/1015368