Click on it:
500 Internal Server Error
Return to Splunk home page
This page was linked to from http://localhost:8500/en-US/app/launcher/home.
File "/Users/dcarasso/Desktop/5.0.3/splunk/lib/python2.7/site-packages/splunk/appserver/mrsparkle/controllers/admin.py", line 1435, in listEntities
Found the problem, after a couple of hours wasted.
The docs said to "Create a block in setup.xml".
It failed to mention that the "block" must be wrapped in "<setup> ... </setup>"
View solution in original post