gnatinspect: 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/gnatinspect - from package: libgnatcoll-sqlite-bin

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

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