Can't make menuconfig

I use Debian 7.4 Wheezy. I trying to upgrade my kernel, but when I type "make menuconfig" it says:

 *** Unable to find the ncurses libraries or the *** required header files. *** 'make menuconfig' requires the ncurses libraries. ***  *** Install ncurses (ncurses-devel) and try again. *** make[1]: *** [scripts/kconfig/dochecklxdialog] Error 1make: *** [menuconfig] Error 2

I trying to install "libncurses5-dev", but I get the error:

E: Unable to locate package libncurses5-dev

P.S.

I downloaded and installed the packages manually and now everything is okay! Thanks a lot!!