Cara Mengatasi : No support for locale: en_US.utf8

Pertama, Buka Terminal. Kemudian ketik perintah dibawah ini :

 sudo dpkg-reconfigure locales

Maka Akan muncul tampilan seperti ini :

Generating locales...
  en_AG.UTF-8... done
  en_AU.UTF-8... done
  en_BW.UTF-8... done
  en_CA.UTF-8... done
  en_DK.UTF-8... done
  en_GB.UTF-8... done
  en_HK.UTF-8... done
  en_IE.UTF-8... done
  en_IN.UTF-8... done
  en_NG.UTF-8... done
  en_NZ.UTF-8... done
  en_PH.UTF-8... done
  en_SG.UTF-8... done
  en_US.UTF-8... up-to-date
  en_ZA.UTF-8... done
  en_ZM.UTF-8... done
  en_ZW.UTF-8... done
Generation complete.

Kemudian ketikkan lagi perintah dibawah ini :

 sudo update-locale LANG=en_US.UTF-8

^_^ Fix-Maximal ^_^