lv2soname: 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/lv2soname - from package: lv2-c++-tools

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

Error in other languages:
lv2soname: bevel nie gevind nie
lv2soname: comandă negăsită
lv2soname: comando não encontrado
lv2soname: commande introuvable
lv2soname: command not found
lv2soname: käsku ei ole
lv2soname: không tìm thấy lệnh
lv2soname: komanda nerasta
lv2soname: Kommando nicht gefunden.
lv2soname: kommandot finns inte
lv2soname: komut yok
lv2soname: nie znaleziono polecenia
lv2soname: níor aimsíodh an t-ordú
lv2soname: no se encontró la orden
lv2soname: no s'ha trobat l'ordre
lv2soname: opdracht niet gevonden
lv2soname: parancs nem található
lv2soname: perintah tidak ditemukan
lv2soname: príkaz nenájdený
lv2soname: příkaz nenalezen
lv2soname: команда не найдена
lv2soname: командата не е открита
lv2soname: 命令找不到
lv2soname: コマンドが見つかりません