Thanks,

Looks like a corruption of the pickle file that we create to speed up the import of the model.
You can do the following
rm models/mssm_v4/*.pkl

And this should fix your problem.

Cheers,

Olivier
 
> On 13 Sep 2017, at 14:22, Alexander Leopold <email address hidden> wrote:
> 
> Hi Olivier!
> 
> Thanks for your reply, I put the debug file in the attachment
> 
> Best,
> Alex
> 
> ** Attachment added: "MG5_debug"
>   https://bugs.launchpad.net/mg5amcnlo/+bug/1716676/+attachment/4949359/+files/MG5_debug
> 
> -- 
> You received this bug notification because you are subscribed to
> MadGraph5_aMC@NLO.
> https://bugs.launchpad.net/bugs/1716676
> 
> Title:
>  "import model_v4 mssm" suddenly doesn't work anymore
> 
> Status in MadGraph5_aMC@NLO:
>  New
> 
> Bug description:
>  Hi! I am trying to generate susy events, for which I use the following
>  script:
> 
>  #######################################
>  set max_npoint_for_channel 0
>  import model_v4 mssm
>  define p = g u c d s u~ c~ d~ s~
>  define j = g u c d s u~ c~ d~ s~
>  define susystrong = go ul ur dl dr cl cr sl sr t1 t2 b1 b2 ul~ ur~ dl~ dr~ cl~ cr~ sl~ sr~ t1~ t2~ b1~ b2~
>  generate p p > x1+ n2 $ susystrong \@1
>  add process p p > x1- n2 $ susystrong \@2
>  output gen_x1n2_mn1_100_mn2_300_LO -nojpeg
>  launch
>  set run_card ebeam1 6500
>  set run_card ebeam2 6500
>  set run_card pdlabel lhapdf
>  set run_card lhaid 247000
>  set run_card nevents 10000
>  set run_card iseed 8
>  set run_card drjj 0
>  set mass 1000022 100
>  set mass 1000023 300
>  set mass 1000024 300
>  set mass 25 125
>  set mass   1000001     5.68441109E+05   # ~d_L^M
>  set mass   2000001     5.45228462E+05   # ~d_R^M
>  set mass   1000002     5.61119014E+05   # ~u_L^M
>  set mass   2000002     5.49259265E+05   # ~u_R^M
>  set mass   1000003     5.68441109E+05   # ~s_L^M
>  set mass   2000003     5.45228462E+05   # ~s_R^M
>  set mass   1000004     5.61119014E+05   # ~c_L^M
>  set mass   2000004     5.49259265E+05   # ~c_R^M
>  set mass   1000005     5.13065179E+05   # ~b_1^M
>  set mass   2000005     5.43726676E+05   # ~b_2^M
>  set mass   1000006     3.99668493E+05   # ~t_1^M
>  set mass   2000006     5.85785818E+05   # ~t_2^M
>  set mass   1000011     2.02915690E+05   # ~e_L^M
>  set mass   2000011     1.44102799E+05   # ~e_R^M
>  set mass   1000012     1.85258326E+05   # ~nu_eL^M
>  set mass   1000013     2.02915690E+05   # ~mu_L^M
>  set mass   2000013     1.44102799E+05   # ~mu_R^M
>  set mass   1000014     1.85258326E+05   # ~nu_muL^M
>  set mass   1000015     1.34490864E+05   # ~tau_1^M
>  set mass   2000015     2.06867805E+05   # ~tau_2^M
>  set mass   1000016     1.84708464E+05   # ~nu_tauL^M
>  set mass   1000021     6.07713704E+05   # ~g^M
>  set mass   1000025    -3.63756027E+05   # ~chi_30^M
>  set mass   1000035     3.81729382E+05   # ~chi_40^M
>  set mass   1000037     3.79939320E+05   # ~chi_2+^M
>  #######################################
> 
>  this script was working before, calculating cross sections, but
>  suddenly I get the error:
> 
>    set max_npoint_for_channel 0
>    import model_v4 mssm
>    Command "import 
>    /afs/cern.ch/work/a/aleopold/private/software/madgraph4/MG5_aMC_v2_4_3/susytest.txt" 
>    interrupted in sub-command:
>    "import model_v4 mssm" with error:
>    KeyError : '\x00'
>    Please report this bug on https://bugs.launchpad.net/mg5amcnlo
>    More information is found in 'MG5_debug'.
>    Please attach this file to your report.
>    quit
> 
>  I am using MadGraph 2.4.3 on lxplus, and have not changed the way I
>  set up my environmental variables etc before, so I do not really
>  understand where this error is coming from. Also starting MG5 manually
>  and trying to import the model results in the same error message.
> 
>  For completeness, I set up doing the following:
> 
>  #######################################
>  setupATLAS
>  lsetup root
>  export PYTHONDIR=/afs/cern.ch/sw/lcg/external/Python/2.7.3/x86_64-slc6-gcc48-opt
>  export PYTHONPATH=$PYTHONPATH:$ROOTSYS/lib
>  export LD_LIBRARY_PATH=$ROOTSYS/lib:$PYTHONDIR/lib:$LD_LIBRARY_PATH:/opt/rh/python27/root/usr/lib64
>  export PATH=/afs/cern.ch/work/a/aleopold/private/software/madgraph5/LHAPDF-install/bin:$PATH
>  export LD_LIBRARY_PATH=/afs/cern.ch/work/a/aleopold/private/software/madgraph4/LHAPDF-install/lib:$LD_LIBRARY_PATH
>  export PYTHONPATH=/afs/cern.ch/work/a/aleopold/private/software/madgraph4/LHAPDF-install/lib64/python2.7/site-packages:$PYTHONPATH
>  #######################################
> 
>  Any help is highly appreciated!
> 
>  Best regards,
>  Alex
> 
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