gcov_tarball: command not found

Have You tried accessing the binary with the full path?

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/lib/plainbox-providers-1/checkbox/bin/gcov_tarball - from package: plainbox-provider-checkbox

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