+7 votes
in Programming by (11.7k points)

I am getting 

The update cannot be installed because we will be unable to copy some files. This is usually due to inconsistent file permissions.: wp-includes/js/mediaelement/bigplay.png, wp-includes/js/mediaelement/background.png, wp-includes/js/mediaelement/controls.png, wp-includes/images/admin-bar-sprite-2x.png, wp-includes/images/admin-bar-sprite.png, wp-includes/images/wpicons-2x.png

Installation Failed

error while upgrading Wordpress Version. How can I fix this?=

3 Answers

+8 votes
by (10.4k points)
First open putty with root user and run this
cd /home/WORDPRESS_SITE_FTP_USERNAME/public_html/wp-admin/images
and run this command, this command fix the files owner and group settings
+13 votes
by (26.3k points)

You must apply this command all files that you receive an error


For example 

for this : wp-includes/js/mediaelement/bigplay.png

cd /home/sitename/public_html/wp-includes/js/mediaelement

chown sitename:sitename *.*

+14 votes
by (1.2k points)

If you get update error you can try to upgrade manually.

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