Hello,

there is no real supported way of doing this. You would need to re-create the TPR in the version you want to use it in. Can you use an external tool instead of g_mmpbsa that supports reading the newer file format?

Cheers

Paul

On 09/04/2020 17:24, Mariem Ghoula wrote:
Hi,

I would like to use g_mmpbsa on my protein-protein complex simulation.
However, after a few errors with the module due to tpr files version
mismatch and after reading some posts with the same issue, I came to the
conclusion that I need to convert my tpr file to an older version. Can you
please help me with this? After installing the old version of gromacs that
is compatible with the g_mmpbsa program, how can I convert my tpr file
issued from an 2019.5 version to an older one (5.0.7)?

Thanks a lot.

- Mariem


--
Paul Bauer, PhD
GROMACS Development Manager
KTH Stockholm, SciLifeLab
0046737308594

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