PHP Warning: mkdir(): Permission denied in

Knowledgebase

Errors & Troubleshooting | Updated 2026

The "PHP Warning: mkdir(): Permission denied in wp-content/plugins/" error means a WordPress plugin cannot create a directory because of incorrect file ownership or permissions. This commonly occurs with page builder plugins like Swift Framework, caching plugins, or any plugin that writes files to the wp-content directory.

Quick Fix

Fix ownership and permissions

Via SSH:
chown -R $USER:$USER ~/public_html/wp-content
find ~/public_html/wp-content -type d -exec chmod 755 {} \;
find ~/public_html/wp-content -type f -exec chmod 644 {} \;

01. Why This Happens

Wrong file ownership - The wp-content directory or its subdirectories are owned by a different user than the PHP process. See SoftException UID Error.
Too restrictive permissions - Directories need 755 to allow PHP to create subdirectories
After a migration or restore - Backups can change ownership or permissions

02. How to Fix

If you have SSH access, run the commands from the featured card above. If not, you can fix permissions via cPanel File Manager by right-clicking directories and selecting "Change Permissions" to 755.

If the issue persists after fixing permissions, the problem is ownership. Open a ticket and we will fix it. Also make sure you have define('FS_METHOD', 'direct'); in your wp-config.php. See WordPress FTP Credentials.