There is an unimplemented method in ReaderPostDetailViewController to deal with sync errors with a TODO:
// TODO: Unhandled failure for user interaction
- (void)onSyncFailure:(AFHTTPRequestOperation *)operation error:(NSError *)error {
@throw ([NSException exceptionWithName:@"Method unimplemented" reason:@"onSyncFailure:error: not implemented in ReaderPostDetailViewController" userInfo:nil]);
}