Failed to access version of LHAPDF

Asked by Ilirjan Margjeka on 2018-09-14

Hi there,

I get this warning:

"fail
Failed to access python version of LHAPDF: If the python interface to LHAPDF is available on your system, try adding its location to the PYTHONPATH environment variable and theLHAPDF library location to LD_LIBRARY_PATH (linux) or DYLD_LIBRARY_PATH (mac os x).
INFO: can not run systematics since can not link python to lhapdf ".

This error is not blocking me from getting the generation of the eevents, but it is appearing every time.
How to I solve this?

Thank you a lot!

Cheers
Ilirjan Margjeka

Question information

Language:
English Edit question
Status:
Solved
For:
MadGraph5_aMC@NLO Edit question
Assignee:
No assignee Edit question
Solved by:
Olivier Mattelaer
Solved:
2018-09-14
Last query:
2018-09-14
Last reply:
2018-09-14

Hi,

1) do you have lhapdf install in your system?
2) if yes: do you have python interface to LHAPDF available on your system,
3) if yes: add its location to the PYTHONPATH environment variable and theLHAPDF library location to LD_LIBRARY_PATH (linux) or DYLD_LIBRARY_PATH (mac os x).

if not at any question fix it.

Cheers,

Olivier

PS: This is needed ONLY if you want to have the theoretical error for your process

> On 14 Sep 2018, at 10:52, Ilirjan Margjeka <email address hidden> wrote:
>
> New question #673946 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/673946
>
> Hi there,
>
> I get this warning:
>
> "fail
> Failed to access python version of LHAPDF: If the python interface to LHAPDF is available on your system, try adding its location to the PYTHONPATH environment variable and theLHAPDF library location to LD_LIBRARY_PATH (linux) or DYLD_LIBRARY_PATH (mac os x).
> INFO: can not run systematics since can not link python to lhapdf ".
>
> This error is not blocking me from getting the generation of the eevents, but it is appearing every time.
> How to I solve this?
>
> Thank you a lot!
>
> Cheers
> Ilirjan Margjeka
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

Ilirjan Margjeka (ilir92) said : #2

Thanks Olivier Mattelaer, that solved my question.