Your username here MUST MATCH your XenForo username (connected to your XF license).

    Once you have registered here, then you need to start a conversation at xenforo.com w/Bob and provide the following:
    1. Your XenForo License Validation Token
    2. The Domain Name associated with the License
    NOTE: Your account will be validated once ALL requirements are verified/met. Thank you for your patience.

Callback NFLJ_Showcase_Listener_Proxy::extendInlineModThreadController is invalid (Invalid Method).


I've been trying to upgrade to Showcase 2.4.0 Release Candidate 2 and I keep getting this message when I upload the .xml file.
Any ideas what I'm doing wrong?
It means that you've not upload all the NEW files that come with the new version. try reuploading the files again. That specific method is in a NEW file that is only since been added in RC 2. If you are using one of those Auto Installers, that could be the problem as those tend to start running the XML before all the files have been uploaded.