wibble-test-genrunner: 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/wibble-test-genrunner - from package: libwibble-dev

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

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