serializer.h: 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/include/cxxtools/bin/serializer.h - from package: libcxxtools-dev

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

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