libecasoundc-config: 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/libecasoundc-config - from package: libecasoundc-dev

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

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