Magento – You must have installed GD library with –with-jpeg-dir=DIR option

I face the same issue. I have 2 ways to resolve this problem:

1. Installation via command line. Read more at http://devdocs.magento.com/guides/v2.1/install-gde/install/cli/install-cli-install.html

2. Change config of PHP-FPM and Nginx.

Here are some possible solutions:

1. In your php-fpm www.conf set security.limit_extensions to .php or .php5 or whatever suits your environment. For some users, completely removing all values or setting it to FALSE was the only way to get it working.

2. In your nginx config file set fastcgi_pass to your socket address (e.g. unix:/var/run/php-fpm/php-fpm.sock;) instead of your server address and port.

3. Check your SCRIPT_FILENAME fastcgi param and set it according to the location of your files.

4. In your nginx config file include fastcgi_split_path_info ^(.+\.php)(/.+)$; in the location block where all the other fastcgi params are defined.

5. In your php.ini set cgi.fix_pathinfo to 1

Read more at https://stackoverflow.com/questions/23390531/access-denied-403-for-php-files-with-nginx-php-fpm?answertab=active#tab-top

2 things you need to remember:

• memory limit is set in basic php.ini file, most often in location like /etc/php/X.X/fpm/php.ini and /etc/php/X.X/cli/php.ini (this varies depending on the system and whether you use php as a service or not). Those settings also tells php whether you can override those default values with your custom ones in php.ini file in your document root folder.

• as you noticed above there are 2 paths for php.ini. If you use php-fpm then you have 2 independent settings for php run via apache/nginx as a response to http request and another set of settings for scripts run from the console (ie. bin/magento or composer).

Now if your system tells you memory limit is 128M then it does not lie. Either your default settings forbids you from settings memory limit in project folder or vhost settings points not to the file you are using to change the settings.