Error deploying to nginx


I’m not sure whether this post should be here or in the nginx section
'cause I don’t know the reason for this error.

Here’s the problem:

I’m trying to deploy a ror application using nginx and phusion. My nginx
seems to work fine, but when I try to go to http://localhost, I only get
“The page you are looking for is temporarily unavailable.
Please try again later.” If I put back the original index.html to my
rubyapp/public folder, I can see the screen I should.

My nginx gives me some strange error like this:

[crit] 11888#0: *1 connect() to
unix:/tmp/passenger.11883/master/helper_server.sock failed (2: No such
file or directory) while connecting to upstream

I have tried to look around for the problem but can’t figure it out. Can
somebody help?

Thanks if can…

Problem solved by changing the version of Phusion passenger. Must be
2.2.6 or newer.