debugapp: command not found

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 CentOS possible default full paths are:

/usr/bin/debugapp - from package: gnustep-make

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/debugapp - from package: gnustep-common

You may install the required package with command apt-get install {package}

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