This error drove me crazy for the longest time. I was using Vagrant, FreeBSD and Laravel for a project and laravel would not run because of where it stores the cache. It took awhile for me to find a good fix but it is fairly easy. In your  /etc/rc.conf file add two lines: rpc_lockd_enable=”YES” rpc_statd_enable=”YES” … More Exclusive locks not supported error, when using FreeBSD in Vagrant.