# Error in the docking process (overlapping numbering)

**URL:** <https://ask.bioexcel.eu/t/error-in-the-docking-process-overlapping-numbering/963>\
**Category:** HADDOCK\
**Created:** [May 30, 2018, 5:18pm UTC](https://ask.bioexcel.eu/t/error-in-the-docking-process-overlapping-numbering/963 "2018-05-30T17:18:34Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![leyra.vazquez](https://avatars.discourse-cdn.com/v4/letter/l/71e660/32.png) [@leyra.vazquez](https://ask.bioexcel.eu/u/leyra.vazquez)\
**Post date:** [May 30, 2018, 5:18pm UTC](https://ask.bioexcel.eu/t/error-in-the-docking-process-overlapping-numbering/963/1 "2018-05-30T17:18:34Z")

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Hi! I received a email with this error:  
There was an inconsistency in your data

Error message

First pdb file contains multiple chains with overlapping numbering: A151 - B151

How can I solve it? Thanks!

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**Author:** ![mtrellet](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/mtrellet/32/42_2.png) [@mtrellet](https://ask.bioexcel.eu/u/mtrellet)\
**Post date:** [May 30, 2018, 7:44pm UTC](https://ask.bioexcel.eu/t/error-in-the-docking-process-overlapping-numbering/963/2 "2018-05-30T19:44:33Z")

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As stated in the message, your PDB contains 2 chains that have the same residue ID (here 151).  
If you want to use both chain for the docking, renumber the chain B to avoid any overlapping numbering with chain A.

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**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:** [May 31, 2018, 11:57am UTC](https://ask.bioexcel.eu/t/error-in-the-docking-process-overlapping-numbering/963/3 "2018-05-31T11:57:24Z")

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PS: Note that this forum is searchable and the answer to your question is already provided… E.g.:

> [@Dealing with dimers](http://ask.bioexcel.eu/t/dealing-with-dimers/42):
>
> Hellow everybody I have problems using Haddock for dimers. I’ve received several different messages: Using pdb (from pdb databse) There was an inconsistency in your data Error message First pdb file contains multiple forms of the same residue. This is not supported in the current form. If you would like to supply multiple conformations, please create an ensemble using a pdb with only one chain (but is a dimer) There was an inconsistency in your data Error message First pdb file contai…