Unhandled error in Deferred

Question

It seems it is inner twisted error... It appears at regular intervals, and actually everything keep work fine, but may be it is my mistake? A code is pretty big, so I pasted it there, and the error:

07:51:32 startLive
07:51:34 time is off
07:51:34 again
07:51:36 time is off
07:51:36 again
07:51:38 time is off
07:51:38 again
07:51:40 time is off
07:51:40 again
07:51:42 time is off
07:51:42 again
Unhandled error in Deferred:
Unhandled Error
Traceback (most recent call last):
Failure: twisted.internet.defer.CancelledError: 
Unhandled error in Deferred:
Unhandled Error
Traceback (most recent call last):
Failure: twisted.internet.defer.CancelledError: 
Unhandled error in Deferred:
Unhandled Error
Traceback (most recent call last):
Failure: twisted.internet.defer.CancelledError: 
07:51:44 time is off
07:51:44 again
07:51:46 time is off
07:51:46 again
07:51:48 time is off
07:51:48 again

Answer 1

There isn't a single call to Deferred.addErrback anywhere in the code you pasted (and please listen to Glyph and don't paste code on external sites).

You should read the section of the Deferred documentation on errbacks.