I have loaded the two zip-files: grav core and grav+admin. Unzipped in my xampp htdocs directory, grav core works, but grav+admin does not. The error message:
Warning: require_once(D:\xampp\htdocs\grav-admin\vendor/composer/autoload_real. php): failed to open stream: No such file or directory in D:\xampp\htdocs\grav-admin\vendor\autoload.php on line 5
Fatal error: require_once(): Failed opening required ‘D:\xampp\htdocs\grav-admin\vendor/composer/autoload_real.php’ (include_path=‘D:\xampp\php\PEAR’) in D:\xampp\htdocs\grav-admin\vendor\autoload.php on line 5
Any ideas?