jana-ecal-time-2: command not found

Have You tried accessing the binary with the full path?

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/jana-ecal-time-2 - from package: libjana-test

You may install the required package with command apt-get install {package}
Error in other languages:
jana-ecal-time-2: bevel nie gevind nie
jana-ecal-time-2: comandă negăsită
jana-ecal-time-2: comando não encontrado
jana-ecal-time-2: commande introuvable
jana-ecal-time-2: command not found
jana-ecal-time-2: käsku ei ole
jana-ecal-time-2: không tìm thấy lệnh
jana-ecal-time-2: komanda nerasta
jana-ecal-time-2: Kommando nicht gefunden.
jana-ecal-time-2: kommandot finns inte
jana-ecal-time-2: komut yok
jana-ecal-time-2: nie znaleziono polecenia
jana-ecal-time-2: níor aimsíodh an t-ordú
jana-ecal-time-2: no se encontró la orden
jana-ecal-time-2: no s'ha trobat l'ordre
jana-ecal-time-2: opdracht niet gevonden
jana-ecal-time-2: parancs nem található
jana-ecal-time-2: perintah tidak ditemukan
jana-ecal-time-2: príkaz nenájdený
jana-ecal-time-2: příkaz nenalezen
jana-ecal-time-2: команда не найдена
jana-ecal-time-2: командата не е открита
jana-ecal-time-2: 命令找不到
jana-ecal-time-2: コマンドが見つかりません