sludge-projectmanager: 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/sludge-projectmanager - from package: sludge-devkit

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

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