Plugin does not activate with wordpress 4.9.2

Hey @stormcat, thanks for getting in touch. This should not be a WordPress version issue as we have the plugin working fine on this version on many sites.

We will have our developers check this out soon and we’ll get back to you.

@stormcat you should have all the dependencies installed already if the installation went well, unless something may have been changed.

Can you please try downloading the plugin from scratch and installing it again?

Thanx for a quick reply.

Downloaded again and installed (and switched off all other plugins just in case). Still get this upon activation:
Warning: require(/zlomnik2/wp-content/plugins/wp-rss-aggregator/vendor/composer/ClassLoader.php): failed to open stream: No such file or directory in /zlomnik2/wp-content/plugins/wp-rss-aggregator/vendor/composer/autoload_real.php on line 12

Warning: require(/zlomnik2/wp-content/plugins/wp-rss-aggregator/vendor/composer/ClassLoader.php): failed to open stream: No such file or directory in /zlomnik2/wp-content/plugins/wp-rss-aggregator/vendor/composer/autoload_real.php on line 12

Fatal error: require(): Failed opening required ‘/zlomnik2/wp-content/plugins/wp-rss-aggregator/vendor/composer/ClassLoader.php’ (include_path=’.:/:/usr/local/php56/lib/pear’) in /zlomnik2/wp-content/plugins/wp-rss-aggregator/vendor/composer/autoload_real.php on line 12

I installed the plugin on another website of mine as well (just to see what would happen) and got the exact same issue.

Hey @stormcat, are both sites on the same host?

Have you tried installing the plugin via the Plugins section of your admin dashboard rather than downloading the zip and uploading it to the site manually?

I just installed the plugin that way on a clean localhost installation as well as a live site of mine, and both worked perfectly fine on WP 4.9.2.

THANK YOU! Brilliant suggestion.

I installed it as you suggested (via the admin dashboard as opposed to uploading the zip version manually) and it WORKS!

And thanx for the faster-than-light answers. You helped me very much.

Glad to hear that!