@Jeremy: That's right, my comment above was a little premature.  The current version of the converter only uses the LCIO API so the ROOT dictionaries aren't needed anymore.  There was an old version of the converter that made use of the LCIO ROOT library but I have moved away from that. 

There are a couple of ways to access the LCIO files.  You can either access  the LCIO files directly using only the LCIO API or you can write a ROOT script which loads the LCIO ROOT dictionary.  This in turn allows access to the LCIO file from within ROOT.  I recommend the former because as you have experienced, generating the ROOT dictionaries sometimes causes issues.  If you check out the DST code, you can find an example of how to do this within the examples directory (TwoTrackAnalysis_example.cxx).  

--Omar Moreno

On Tue, Apr 2, 2013 at 11:46 AM, Yuri Gershtein <[log in to unmask]> wrote:

On Apr 2, 2013, at 2:42 PM, Graf, Norman A. wrote:

You only need the lcio root dictionary if you want to access the
lcio files directly from within root.

that's exactly what we want to do...

-y

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