James - good news, the Developer has just fixed the problem with the error message when you try to click on permissions. I've tested it and can confirm that it is new working as expected. Can you download the plugin from https://github.com/synergylearning/moodle-local_wikiexport/archive/master.zip and install it again.
When you have the new code...
and do the same for the student role.
When you have the new code...
- Go to the wiki.
- Click on the settings cog and choose "Permissions"
- Scroll down to "Create new wiki pages" and delete the student role.
- Students will then not be able to create new wiki pages in that wiki only.
and do the same for the student role.