ocamldumpobj: 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/ocamldumpobj - from package: ocaml-nox

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