Common Update Failure Errors

Messages: 'Update failed: Could not create directory', 'Download failed'.

Check Folder Permissions

/wp-content/ must be 755, /wp-content/plugins/ and /upgrade/ 755.

Fix File Ownership

Contact host if files owned by 'nobody' after FTP upload.

Solutions

Add to wp-config.php

define('FS_METHOD', 'direct');

Increase PHP Limits

Raise upload_max_filesize and max_execution_time.

Manual Update Method

Download plugin → Delete old via FTP → Upload new version.

Fixes Priority Table

IssueSolution
Permission deniedFix folder permissions
OwnershipRe-upload via FTP
TimeoutIncrease execution time
Disk fullFree up space