tapeconv: 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/tapeconv - from package: fuse-emulator-utils

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

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