Note to all - please see/ follow this Community Announcement regarding this issue:
https://community.skuid.com/t/salesforce-outage-affecting-skuid

Hi,

We have just tried to install skuid into a new org, the most recent version (version 11.2.12), and we are getting this message pop up when we try to load the skuid pages tab. We tried to install a previous version of skuid that we have working in another org (11.2.11) and still received this error.

Any help would be greatly appreciated as to what we can try to do to fix it!