WP Toolkit gives "Allowed memory size of ### bytes exhausted"

Symptoms

When running various tasks in WP Toolkit such as installing a site or checking for updates, it fails with an error similar to the following.

CONFIG_TEXT: PHP Fatal error:  Out of memory (allocated 6291456) (tried to allocate 12288 bytes) in /usr/local/cpanel/3rdparty/wp-toolkit/plib/vendor/wp-cli/vendor/wp-cli/language-command/src/Plugin_Language_Command.php on line 421

Cause

The error occurs when the PHP memory_limit value is too low.

Resolution

1. Log into the WHM as root.
2. Navigate to Home / Software / MultiPHP INI Editor
3. Click the Basic Mode tab.
4. Select the version of PHP from the dropdown menu.
5. Scroll down to the memory_limit setting.
6. Set the memory_limit value to the desired value.
7. Click the Apply Button.

Additional resources

MultiPHP INI Editor for WHM