I\'m getting this error:
Error: [CakeSessionException] Unable to configure the session, setting session.auto_start failed.
I\'m using Cakephp 2.2.4.
as I do not have enough reputation to comment, I'm adding the following answer in addition to Simon's one:
to get it working, I had to comment out all three occurrences of 'session.auto_start' => 0 (around and after line 557 in CakeSession.php)
For details, see the following patch of the CakePHP team: https://github.com/cakephp/cakephp/commit/faa2cbd3c3fc1bbf83064727847789123110b8e3#diff-bd8dc176fa0f41743dbaafa75f77b5ae