vtkEncodeString: 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/vtkEncodeString - from package: vtk

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

On Debian possible default full paths are:

/usr/bin/vtkEncodeString - from package: libvtk5-dev

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

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