I’m using xmlsitemap plugin and I get this error message. I just set the plugin into the folder /plugins/. I also tried to set mutiple params into config, deletting every other plugins, without changes.
The author says : (…) supporting installation by zip and submodule was an absolute pain, especially as I am an installation by composer person, so do feel guilted into getting me Coffee, Beer, etc.
I tried to do an unzip install with the plainkit, same message. I guess this plugin doesn’t work by doing an unzip installation. How to get it works ? (I don’t use composer btw)