ext_framebuffer_multisample-blit-mismatched-sizes: 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/lib64/piglit/bin/ext_framebuffer_multisample-blit-mismatched-sizes - from package: piglit

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

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