Same "problem" here, however I can not see that it affects the creation of the eventtype.
The only thing that might be logged in regards, but i dont think so, to the error showing up is the following;
12-04-2012 14:33:11.330 +0100 WARN NetUtils - selectfor timeout hit waiting for read
12-04-2012 14:33:11.330 +0100 WARN NetUtils - Bad selectfor_loop rv = -2
12-04-2012 14:33:11.330 +0100 ERROR HTTPClient - Should have gotten at least 3 tokens in status line, while getting response code. Only got 0.
splunk 5.0.5 may solve this problem:
Search head pooling: Build event type page shows error: "Unable to get
sample events: local variable 'f' referenced before assignment".