Visual editor not working in wordpress 3.8.1?

问题:

I have just updated wordpress to 3.8.1 and visual editor not working in page and post. I have tried with following solutions but none of them works for me.

-Activate and deactivate all plugin.

-installed Use Google Libraries plugin.

-Changed theme.

-unchecked in user profile for "Disable the visual editor when writing".

-cleared browser cache.

-Reinstalled wordpress.

-added this line to wp-config.php define('CONCATENATE_SCRIPTS', false );

回答1:

disable and re-enable the Yoast SEO plugin,

回答2:

Thanks for replay. I have solved this issue by manually download wordpress 3.8.1 and uploaded wp-admin and wp-includes folders using ftp. Now its working nicely.