Error on add plugins page after update.

Little info: I had the same issue and tried to find the source of it. In my case it was js_composer alias WPBakery Visual Composer which didn’t had the plugin-property with the slug within its object.

After updating to the current version and removing of the transient _transient_plugin_slugs the error disappeared.

Just wanted to add, in case anybody has the same problem as me, that changing my PHP version fixed it (I was using 5.6 and was getting the error, after setting it to 7.2 it stopped).

@stnbrk this is not a solution. it’s not fixed, it just hides the error

I’m facing the same problem and tried all solutions above but all in vain.
Any help?

Thank @afifsukri it’s works for me

I have tried all the above recommendations and I still get the error message and I′m not able to install any plugins either

Just found this plugin https://www.ads-software.com/plugins/artiss-transient-cleaner/
It did it. The error message went away.

the solution from @stnbrk worked great for me (disabling wp_debug in wp-config file). Thanks!

Disabling WP_Debug does not fix the issue. It disables displaying errors.

I also get the same problem, suggest me how can I solve this problem . my blog is https://globalhacknews.com