PSVIWriter: 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/PSVIWriter - from package: libxerces-c-samples

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

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