FeatureLinkerUnlabeledQT: 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/FeatureLinkerUnlabeledQT - from package: topp

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

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