ProteinInference: 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 Debian possible default full paths are:

/usr/bin/ProteinInference - from package: topp

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

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