lt-comp: command not found

Have You tried accessing the binary with the full path?

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On Debian possible default full paths are:

/usr/bin/lt-comp - from package: lttoolbox

You may install the required package with command apt-get install {package}
Error in other languages:
lt-comp: bevel nie gevind nie
lt-comp: comandă negăsită
lt-comp: comando não encontrado
lt-comp: commande introuvable
lt-comp: command not found
lt-comp: käsku ei ole
lt-comp: không tìm thấy lệnh
lt-comp: komanda nerasta
lt-comp: Kommando nicht gefunden.
lt-comp: kommandot finns inte
lt-comp: komut yok
lt-comp: nie znaleziono polecenia
lt-comp: níor aimsíodh an t-ordú
lt-comp: no se encontró la orden
lt-comp: no s'ha trobat l'ordre
lt-comp: opdracht niet gevonden
lt-comp: parancs nem található
lt-comp: perintah tidak ditemukan
lt-comp: príkaz nenájdený
lt-comp: příkaz nenalezen
lt-comp: команда не найдена
lt-comp: командата не е открита
lt-comp: 命令找不到
lt-comp: コマンドが見つかりません