lablgladecc2: 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/lablgladecc2 - from package: ocaml-lablgtk

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

On Debian possible default full paths are:

/usr/bin/lablgladecc2 - from package: liblablgtk2-ocaml-dev

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

Error in other languages:
lablgladecc2: bevel nie gevind nie
lablgladecc2: comandă negăsită
lablgladecc2: comando não encontrado
lablgladecc2: commande introuvable
lablgladecc2: command not found
lablgladecc2: käsku ei ole
lablgladecc2: không tìm thấy lệnh
lablgladecc2: komanda nerasta
lablgladecc2: Kommando nicht gefunden.
lablgladecc2: kommandot finns inte
lablgladecc2: komut yok
lablgladecc2: nie znaleziono polecenia
lablgladecc2: níor aimsíodh an t-ordú
lablgladecc2: no se encontró la orden
lablgladecc2: no s'ha trobat l'ordre
lablgladecc2: opdracht niet gevonden
lablgladecc2: parancs nem található
lablgladecc2: perintah tidak ditemukan
lablgladecc2: príkaz nenájdený
lablgladecc2: příkaz nenalezen
lablgladecc2: команда не найдена
lablgladecc2: командата не е открита
lablgladecc2: 命令找不到
lablgladecc2: コマンドが見つかりません