mprof-report: 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 CentOS possible default full paths are:

/usr/bin/mprof-report - from package: mono-core

You may install the required package with command yum install {package}

On Debian possible default full paths are:

/usr/bin/mprof-report - from package: mono-utils

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

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