I am trying to use the Auth0 plug-in for WordPress using the user migration option but having no luck. I spent an entire day trying to make this work. I have installed the plug-in and configured as described here: User Migration in Login by Auth0 WordPress Plugin
I have verified the endpointUrl and migrationToken in the Auth0 configuration many times. I copied the login script from the GitHub repository as instructed. But when I click “Save and Try” I always get “Unexpected token < in JSON at position 0”. This is the main site of a WordPress multisite implementation and it is the first I have installed the plugin on.
I am at my wit’s end here, what can I do to resolve this? The troubleshooting steps indicate that this is a problem with the endpoint, but I have verified the endpointUrl and migrationToken are correct so what else could it be?