Unknown error occurred after install on MAMP Successfully installed Craft on MAMP but whenever I load the dashboard, I get the error message "Unknown error occurred". The message clears after a few seconds. The CMS appears to be functioning correctly except when I create a Section, it only allows me to select Single as a type. 

Can anyone shed light on this error?
Chances are your craft/config folder isn't writable, but you can see the underlying error in your craft/config/storage/runtime/logs files.  Just search for [error] or [warning].