raspberry pi - Error installing opencv 2.4.3 on debian -

i beginner raspberry pi debian os.

when install opencv-2.4.3 "sudo gedit /etc/ld.so.conf.d/opencv.conf" got error:

"sudo: gedit:command not found" 

then trying install "gedit" failed error:

"the following packages have unmet dependencies:  gedit : depends: libpeas-1.0-0 (>= 1.1.0) not going installed      depends: gir1.2-peas-1.0 not going installed     e: unable correct problems, have held broken packages." 

how solve issue?

just install aptitude resolve dependencies you.

sudo apt-get install aptitude sudo aptitude install gedit 

moreover edit file can use vim or nano.

regards