Hi Gyula, Trying to reproduce this error now. I'm assuming this is 0.10-SNAPSHOT?
Cheers, Max On Wed, Nov 4, 2015 at 1:49 PM, Gyula Fóra <gyf...@apache.org> wrote: > Hey, > > Running the following simple application gives me an error: > > //just counting by key, the > streamOfIntegers.keyBy(x -> x).timeWindow(Time.milliseconds(3000)).fold(0, ( > c, next) -> c + 1).print(); > > Executing this gives the following error: > > "No initial value was serialized for the fold window function. Probably the > setOutputType method was not called." > > Any idea? > > Cheers, > > Gyula