go-export-prolog: 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/go-export-prolog - from package: libgo-perl

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

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