svn export and undefined

I am using subversion for my Yii application. I do frequent svn exports (every minute via crontab) of the views directory from the repository to the development web server.

After doing so, I often get a PHP Undefined variable error when trying to access the application. The undefined variable could be a variety of variables like $model and $content. The only way to get the error to clear is to restart Apache server.

After the restart, the application comes fully back to life with no errors.

Any help would be appreciated.

Chuck Watson

EnergyChaser, LLC