ExecutePipeline: 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/ExecutePipeline - from package: topp

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

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