[Rivet] Sherpa+Rivet: m_io->fill_next_event fails

[Eike von Seggern]

Hi,

I'm trying to run Sherpa with the BaBar setup and analyse the events
with Rivet. However, Rivet stops after processing a few events. I
tracked it down to that the m_io->fill_next_event call in
Run::processEvent fails. But no other error message is printed by HepMC.
Sherpa and Rivet are both built against HepMC 2.05 .

I attach the Sherpa run card. The Rivet command is:

rivet -l Rivet=DEBUG -a PDG_HADRON_MULTIPLICITIES babar.hepmc2g

Has anyone an idea what's going wrong.

Best,
    eike

PS: I've sent this to the Sherpa list as well, unfortunately my first CC
try failed :(
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