Fatal error: Allowed memory size of … bytes exhausted
If you got the above message when Import Demo Content. It means your WordPress installation doesn’t have enough memory to operate. Here are some solutions you can try:
Solution 1: Edit file wp-config.php
Add the following to wp-config.php
define( 'WP_MEMORY_LIMIT', '512M' );
(usually place under define(‘DB_COLLATE’, ”);)
Solution 2: Edit file .htaccess
Make sure you back up .htaccess before you edit it.
Add the following to .htaccess:
php_value memory_limit 512M
Solution 3: Edit php.ini
Add the following to php.ini:
memory_limit=512M
Credit:
https://codex.wordpress.org/Common_WordPress_Errors#Allowed_memory_size_exhausted
If you’ve tried all methods and still get errors, please contact your hosting administrator to resolve this issue.