obconformer: 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/obconformer - from package: openbabel

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

On Debian possible default full paths are:

/usr/bin/obconformer - from package: openbabel

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

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