problem with install adobe media server ( ubuntu 12.04 64bit )

Hello

i have problem with my server new reinstalled and try to adobe media server

show to me:-

root@active:~/Downloads/adobe# ./installAMS

ERROR: A required package, libcap, was not found on your Linux x86_64 Debian.

       Please install required package and run Adobe Media Server installer again.

tried to install

apt-get install libcap

show to me:-

root@active:~# apt-get install libcap

Reading package lists... Done

Building dependency tree

Reading state information... Done

E: Unable to locate package libcap

im used also:-

root@active:~# ln -s /lib64/libcap.so.2 libcap.so.1

all them same thing

im tried with debian 7 64 bit

and

ubuntu 12.04 64bit

what is solution??