Wordpress: Warning: Could not activate the plugin.
Very recently I was performing some Wordpress Plugin development when I experienced a very strange error when attempting to install and activate my development plugin:
Warning: Could not activate the '<your plugin name>' plugin.
What made the error so strange is that nothing appeared in the logs anywhere to suggest what the root cause of the error might be.
After much deliberating, I eventually used wp db search <your plugin name>
and discovered that the active_plugins
wp_option still had my NOT active development plugin in the list. So how best to refresh active_plugins
so that it started showing the correct value?
I solved the problem by picking a different plugin altogether and deactivating / reactivating it. That cleared out the active_plugins
back to the right value after which I was able to successfully install my plugin.
I hope this helps somebody else.