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1) Change >> .env.example to .env

Location of .env.example >> C:\wamp64\www\llc-laravel-2018

2)  php  artisan  key:generate

Finally run the project. it will work

Configure Virtual Host in windows

Step-1: changes in host file.
Host file path>> C:\Windows\System32\drivers\etc
127.0.0.1       llcwork.bnd

Note: Editor open as a administrator

step-2: Go to the  C:\wamp64\bin\apache\apache2.4.27\conf folder. check httpd.conf file and uncomment line(if comments exists)- "Include conf/extra/httpd-vhosts.conf".

File  Path: C:\wamp\bin\apache\apache2.4.23\conf
Include conf/extra/httpd-vhosts.conf  [make  it uncomment, if there is comment  exists]

Step-3: Go to the  C:\wamp64\bin\apache\apache2.4.27\conf\extra  folder and do the following in "httpd-vhosts.conf" file
File  Path: C:\wamp\bin\apache\apache2.4.23\conf\extra
<VirtualHost *:80>
  ServerName llcwork.bnd
  ServerAlias llcwork.bnd
  DocumentRoot "C:\wamp64\www\llc-laravel-2018\public"
  <Directory "C:\wamp64\www\llc-laravel-2018\public/">
    Options +Indexes +Includes +FollowSymLinks +MultiViews
    AllowOverride All
    Require local
  </Directory>
</VirtualHost>

Step-4: Restart all services [wamp]