MadGraph5_aMC@NLO

Up against ERROR 403: Forbidden when installing pythia 8

Asked by Yuchen Guo

Dear Olivier,

Starting from the day before yesterday, I always receive a 403 forbidden when installing pythia8.
I am using Ubuntu 18.04.

================================
MG5_aMC>install pythia8
You are installing 'pythia8', please cite ref(s): arXiv:1410.3012.
Downloading the HEPToolInstaller at:
   http://madgraph.phys.ucl.ac.be/Downloads/HEPToolsInstaller/HEPToolsInstaller_V128.tar.gz
Pythia8 will be linked to LHAPDF v6.
Now installing Pythia8. Be patient...
Fetching data with command:
  wget --no-check-certificate http://home.thep.lu.se/~torbjorn/pythia8/pythia82.tgz
--2020-04-27 16:13:27-- http://home.thep.lu.se/~torbjorn/pythia8/pythia82.tgz
Resolving home.thep.lu.se (home.thep.lu.se)... 130.235.189.138
Connecting to home.thep.lu.se (home.thep.lu.se)|130.235.189.138|:80... connected.
HTTP request sent, awaiting response... 403 Forbidden
2020-04-27 16:13:29 ERROR 403: Forbidden.

Could not download data at 'http://home.thep.lu.se/~torbjorn/pythia8/pythia82.tgz' because of:
coercing to Unicode: need string or buffer, NoneType found

Command "install pythia8" interrupted with error:
InvalidCmd : Installation of pythia8 failed.
================================================

Is there a work around?

For example we copy the files from the HEPTools/pythia8 folder from another computer, but there is also an error about mg5amc_py8_interface.

==============================================
.....
Pythia8 shower jobs: 0 Idle, 3 Running, 5 Done [1 seconds]
Pythia8 shower jobs: 0 Idle, 2 Running, 6 Done [1 seconds]
Pythia8 shower jobs: 0 Idle, 1 Running, 7 Done [1 seconds]
Pythia8 shower jobs: 0 Idle, 0 Running, 8 Done [1 seconds]
Merging results from the split PY8 runs...
Error detected in "generate_events run_02"
write debug file /home/b804-02/work/MG5_aMC_v2_7_2/testtt/run_02_tag_1_debug.log
If you need help with this issue please contact us on https://answers.launchpad.net/mg5amcnlo
MadGraph5Error : Histogram with run_id '0' was not found in the specified XML source.
quit
===================================

I reinstalled the mg5aMC_py8_interface, and other error show up:

======================================================
......
The version of HEPMC2 linked to Pythia8 seems not to include a static library.
This is necessary for the default compilation of MG5aMC_PY8_interface.
You can try again with the option --pythia8_makefile but HEPMC2 will need to be available at runtime.

Command "install mg5amc_py8_interface " interrupted in sub-command:
"install mg5amc_py8_interface" with error:
InvalidCmd : Installation of mg5amc_py8_interface failed.
===================================================

Please help!

Best
Yu-Chen

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Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said : 		#1

HI,

Your second issue is due to a configuration error when multiple version of PY8 exists.
Look at the last post of this thread:
https://bugs.launchpad.net/mg5amcnlo/+bug/1649725
on how to fix that.

Cheers,

Olivier

PS: For the py8 link, we will have to wait that their website is up again

Revision history for this message
Manfred Hampl (m-hampl) said : 		#2

The website is up, bit the file seems not to exist (any more).

If you look at http://home.thep.lu.se/~torbjorn/pythia8/ you will see that several file with a name line pythia(number).tgz exist, but no file pythia82.tgz

This seems to be an inconsistency between the filename in the installer and the files available on the server.

Revision history for this message
Olivier Mattelaer (olivier-mattelaer) said : 		#3

Ah i see,

Looks like pythia8 author have decided to remove that tarball.
I will check with them what need to be done.

Cheers,

Olivier
> On 27 Apr 2020, at 13:43, Manfred Hampl <email address hidden> wrote:
>
> Question #690238 on MadGraph5_aMC@NLO changed:
> https://answers.launchpad.net/mg5amcnlo/+question/690238
>
> Manfred Hampl proposed the following answer:
> The website is up, bit the file seems not to exist (any more).
>
> If you look at http://home.thep.lu.se/~torbjorn/pythia8/ you will see
> that several file with a name line pythia(number).tgz exist, but no file
> pythia82.tgz
>
> This seems to be an inconsistency between the filename in the installer
> and the files available on the server.
>
> --
> You received this question notification because you are an answer
> contact for MadGraph5_aMC@NLO.

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