# Installation error

**URL:** <https://ask.bioexcel.eu/t/installation-error/1041>\
**Category:** HADDOCK\
**Created:** [July 2, 2018, 10:55am UTC](https://ask.bioexcel.eu/t/installation-error/1041 "2018-07-02T10:55:55Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![Urszula\_Uciechowska](https://avatars.discourse-cdn.com/v4/letter/u/ad7895/32.png) [@Urszula\_Uciechowska](https://ask.bioexcel.eu/u/Urszula_Uciechowska)\
**Post date:** [July 2, 2018, 10:55am UTC](https://ask.bioexcel.eu/t/installation-error/1041/1 "2018-07-02T10:55:55Z")

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The HADDOCK category is meant to discuss any HADDOCK-related issue. For general information about HADDOCK refer to [http://www.bonvinlab.org/software/haddock2.2](http://www.bonvinlab.org/software/haddock2.2)

Dear users,

I am getting an error message after running haddock2.2 :

Traceback (most recent call last):  
File “/home/ula/Programs/haddock2.2/Haddock/RunHaddock.py”, line 249, in   
run = InputFileParser.ParseRunCns() #define a dictionary run (variablename:value)  
File “/home/ula/Programs/haddock2.2/Haddock/DataIO/InputFileParser.py”, line 108, in ParseRunCns  
variablevalue[head][t] = vvv  
TypeError: ‘str’ object does not support item assignment

any suggestions

best reagrds  
Urszula

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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:** [July 2, 2018, 1:21pm UTC](https://ask.bioexcel.eu/t/installation-error/1041/2 "2018-07-02T13:21:17Z")

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Running a local version of HADDOCK I assume?

This looks like a problem in your run.cns  
Do check its format, compare with an original file from the HADDOCK distribution

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**Author:** ![Urszula\_Uciechowska](https://avatars.discourse-cdn.com/v4/letter/u/ad7895/32.png) [@Urszula\_Uciechowska](https://ask.bioexcel.eu/u/Urszula_Uciechowska)\
**Post date:** [July 3, 2018, 7:27am UTC](https://ask.bioexcel.eu/t/installation-error/1041/3 "2018-07-03T07:27:11Z")

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I am trying to run a local version of HADDOCK 2.2. I did not change the run.cns. I am running examples from the haddock directory …I do not know what is the problem.

run.cns  
! The file containing all parameters for HADDOCK  
!  
! \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
! \* Copyright 2003-2015 Alexandre Bonvin, Utrecht University. \*  
! \* Originally adapted from Aria 1.2 from Nilges and Linge, EMBL. \*  
! \* All rights reserved. \*  
! \* This code is part of the HADDOCK software and governed by its \*  
! \* license. Please see the LICENSE file that should have been included \*  
! \* as part of this package. \*  
! \*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*\*  
!  
module(  
iteration;  
filenames;  
data;  
iterations;  
saprotocol;  
refine;  
toppar;  
analysis;  
)

{+ File: run.cns +}  
{+ Description: this file contains all necessary information to run HADDOCK. +}

{+ Authors: Alexandre Bonvin +}  
{+ Version: 2.2, 2013 +}  
{+ Initially adapted from ARIA of Nilges and Linge +}

{+ Please cite the following references when using this protocol: +}  
{+ reference: Cyril Dominguez, Rolf Boelens and Alexandre M.J.J. Bonvin (2003). HADDOCK: a protein-protein docking approach  
based on biochemical and/or biophysical information. _J. Am. Chem. Soc._ **125** , 1731-1737.

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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 3, 2018, 8:11am UTC](https://ask.bioexcel.eu/t/installation-error/1041/4 "2018-07-03T08:11:19Z")

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Which python version are you using? Should be 2.7.X

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<div class="post-metadata">

**Author:** ![Urszula\_Uciechowska](https://avatars.discourse-cdn.com/v4/letter/u/ad7895/32.png) [@Urszula\_Uciechowska](https://ask.bioexcel.eu/u/Urszula_Uciechowska)\
**Post date:** [July 3, 2018, 9:26am UTC](https://ask.bioexcel.eu/t/installation-error/1041/5 "2018-07-03T09:26:47Z")

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I am using python 2.7.

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<div class="post-metadata">

**Author:** ![Urszula\_Uciechowska](https://avatars.discourse-cdn.com/v4/letter/u/ad7895/32.png) [@Urszula\_Uciechowska](https://ask.bioexcel.eu/u/Urszula_Uciechowska)\
**Post date:** [July 3, 2018, 9:27am UTC](https://ask.bioexcel.eu/t/installation-error/1041/6 "2018-07-03T09:27:32Z")

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I have installed python 3 as well but I edited haddock scripts and changed i to 2.7.

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**Author:** ![joaor](https://dub1.discourse-cdn.com/flex013/user_avatar/ask.bioexcel.eu/joaor/32/194_2.png) [@joaor](https://ask.bioexcel.eu/u/joaor)\
**Post date:** [July 3, 2018, 9:44am UTC](https://ask.bioexcel.eu/t/installation-error/1041/7 "2018-07-03T09:44:28Z")

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Hi Urszula,

This error has two probable causes:

1. You accidentally changed something in the `InputFileParser.py` file.
2. Your `run.cns` file has an invalid value somewhere. Unfortunately our parser will not tell you where.

Could you share your full run.cns file with us? You can e-mail it to me at `joaor@stanford.edu`. In between, make sure your `InputFileParser.py` file has not been edited somehow.