I went to my Updates dashboard today and it said I needed to update 5 plugins. So, as I normally do, I selected all of the plugins and clicked on the Update Plugins button. However, for the first time that I can recall in the more than 10 years I've been maintaining this site, it asked me for my FTP information. So I enter it all in and click the Proceed button, but then I get the following error messages for each plugin:
An error occurred while updating xxxxx: Unable to locate WordPress content directory (wp-content).
I thought maybe it was just one of the plugins that required an update via FTP, but nope, I tried updating each plugin one at a time and each one required my FTP credentials and they each generated the same error. I verified my credentials were OK by logging in via an FTP client. And the wp-content folder exists (and my website is running OK).
Anyone knows why it's all of a sudden requiring my FTP credentials and why it's failing? I went to another website that I maintain, and I was able to update a plugin without it asking for my FTP creds. I guess I can go back to the old time-consuming way of updating the plugins using FTP.

Sounds like file permissions/ownership issues.