# Troubleshooting prodigy results

**URL:** <https://ask.bioexcel.eu/t/troubleshooting-prodigy-results/6184>\
**Category:** PRODIGY\
**Tags:** support, tutorials, community\
**Created:** [July 1, 2026, 8:57am UTC](https://ask.bioexcel.eu/t/troubleshooting-prodigy-results/6184 "2026-07-01T08:57:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![philipeh](https://avatars.discourse-cdn.com/v4/letter/p/cdc98d/32.png) [@philipeh](https://ask.bioexcel.eu/u/philipeh)\
**Post date:** [July 1, 2026, 8:57am UTC](https://ask.bioexcel.eu/t/troubleshooting-prodigy-results/6184/1 "2026-07-01T08:57:54Z")

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Hello Everyone,

I’ve issue. When I analyse the results of my docking with GRAMM-X in PRODIGY to study the molecular interactions, the tool tells me that no contact has been detected. However, visualisation with PyMOL shows me an interaction between the two molecules.

_# ===========================================================================  
command: prodigy receptor\_ligand\_model1\_1.pdb --selection A X --temperature 25.0 --contact\_list --pymol\_selection  
exit status: 0  
log:  
[+] Executing 1 task(s) in total  
Error processing model: No contacts found for selection_  
Could you please help me resolve this issue?  
Thank you

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<div class="post-metadata">

**Author:** ![amjjbonvin](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/amjjbonvin/32/23_2.png) [@amjjbonvin](https://ask.bioexcel.eu/u/amjjbonvin)\
**Post date:** [July 1, 2026, 1:33pm UTC](https://ask.bioexcel.eu/t/troubleshooting-prodigy-results/6184/2 "2026-07-01T13:33:07Z")

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Check that you are specifying the correct chains - they should exist in your PDB file.

Also check that there is not END statement between the chains in the PDB file - should only be a TER statement.