WordPress update “cannot be installed because we will be unable to copy some files”

 Posted September 20, 2017

If you receive the following error when trying to update WordPress, you’ve probably got your file permissions set incorrectly:

If you have SSH root access to your server, this will likely solve your problem:

1. Navigate to your base WordPress installation folder.

This is folder contains your wp-config.php file and subfolders /wp-admin, /wp-content and /wp-includes.

For example, if your WordPress installation directory is /var/www/html you would type:

2. Change your WordPress file permissions to 664:

(What is file permission 664?)

2. Change your WordPress folder permissions to 775:

(What is directory permission 775?)

3. Change the permissions of your wp-config.php file to 660:

(What is file permission 660?)

4. Try updating WordPress again.

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