## puppet version

2.6.6

## puppet error

err: Could not retrieve catalog from remote server: Error 400 on SERVER: Could not find class group in namespaces centos at /etc/puppet/manifests/os/centos.pp:4 on node puppet.acadaca.net
warning: Not using cache on failed catalog
err: Could not retrieve catalog; skipping run



## site.pp

...

 # site.pp
import "template"
import "nodes"
import "classes/*"
import "groups/*"
import "users/*"
import "os/*"

...



## centos.pp

class  centos {

 include yumrepos
 include group

...

}



## ls of group.pp

[root@puppet ~]# ls -l /etc/puppet/manifests/groups/group.pp
-rw-r--r-- 1 puppet puppet 3372 May 10 11:10 /etc/puppet/manifests/groups/group.pp