csdp-graphtoprob: 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/csdp-graphtoprob - from package: coinor-csdp

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