I have installed apache2 in my ubuntu 12.4 using sudo apt-get install apache2, now i am not able to start the server, when i use service apache2 start, following things were displayed.

    bharathkumar@hkbharath:~$ service apache2 start

    * Starting web server apache2                                                     

    /usr/sbin/apache2ctl: 87: ulimit: error setting limit (Operation not permitted)

    mktemp: failed to create directory via template `/var/lock/apache2.XXXXXXXXXX': No such file or directory

    chmod: missing operand after `755'

    Try `chmod --help' for more information.

                                                                                 [fail]

i tried uninstalling and reinstalling apache2, but still getting the same thing, please help me to start my apache2 server.

Thanks