ansi_parser: 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/lib/plainbox-providers-1/checkbox/bin/ansi_parser - from package: plainbox-provider-checkbox

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

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