Calendar plugins can not display setting pages.

Navigate the Administration block and expand "Site administration", "Plugins". Check that there is no heading for "Calendar types". Install the following calendar plugin in the calendar/type directory. git clone git@github.com:abgreeve/moodle-calendartype_japanese.git japanese Navigate back through the administration block and check that there is now a heading under the "plugins" section called "Calendar types" and under that is a link for the Japanese settings. Clicking the link will take you to a settings page for the japanese calendar type. Un-install the plugin. Make sure that the "Calendar types" section is now removed from the Administration block.