Hello
I hope any expierenced user could help me.
I want to create a importer plugin.
On activation it needs to check if two other plugins (Newsletter and Membership) are exist and activated. I do this by using is_plugin_activated.
So I want to avoid activation if any required plugin isn't installed or activated, because if the plugins are missing or deactivated an import will occur in a fatal error cause I use the api of the plugins.
If anyone knows how I could archieve that in this case the activation is cancelled and a error message is displayed instead please let me know it.
I've read about trigger_error, but I think there must be a better solution.
