Re: [Stateful Functions] Problems with Protobuf Versions

["Tzu-Li (Gordon) Tai" <tz...@apache.org>]

Hi,

This hints an incompatible Protobuf generated class by the protoc compiler,
and the runtime dependency used by the code.

Could you try to make sure the `protoc` compiler version matches the
Protobuf version in your code?

Cheers,
Gordon

On Fri, Jan 29, 2021 at 6:07 AM Jan Brusch <ja...@neuland-bfi.de>
wrote:

> Hi,
>
> I have a bit of a strange problem: I can't get a Statefun Application to
> Compile or Run (Depending on the exact Protobuf version) with a Protobuf
> version newer than 3.3.0. I have had this problem over multiple project
> setups and multiple versions of Flink Statefun with Java8.
>
> Protobuf 3.3.0 works fine and all, but it does seem a bit odd...
>
>
> The most common error behaviour is a successful maven build and the
> following Runtime Error on Startup:
>
> java.lang.NoClassDefFoundError:
> com/google/protobuf/GeneratedMessageV3$UnusedPrivateParameter
>
>
> Does anyone else have this Problem or found a solution for this in the
> past?
>
>
> Best regards
>
> Jan
>
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