AZURE VM上的DRUPAL安装

I am trying to install OPIGNO opigno_lms-7.x-1.20-core on AZURE V M (Bitnami Drupal 7.31-0 in the Microsoft Azure Cloud.) but whei choose the language and go to check the requirements its show these errors :

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So how to solve these 2 problems ???

1.1) Open git bash; 1.2) Go to cd /sites/default; 1.3) mkdir files -m 755;

2.1) Go to cd /sites/default; 2.2) cp default.settings.php settings.php;