evince-previewer: 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/evince-previewer - from package: evince

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

On Debian possible default full paths are:

/usr/bin/evince-previewer - from package: evince-gtk
/usr/bin/evince-previewer - from package: evince

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

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