How to generate NLO with MG5_3.1.0

Hi,

3.1.0 is quite old now, so I would first suggest to more to a more recent version (or downgrade to our long term stable version).

This being said error "127" is a standard linux error for command not found.
So you likely miss a unix dependency.
If you still face this in 3.4.0, I would suggest to look at the log file in the directory
/home/ybf/Programs/wsy/MG5_ aMC_ v3_ 1_ 0/MY_ FIRST_ AMCTANLO_ RUN/SubProcesses/P0_ udx_ veep/all_G1
or
/home/ybf/Programs/wsy/MG5_ aMC_ v3_ 1_ 0/MY_ FIRST_ AMCTANLO_ RUN/SubProcesses/P0_ udx_ veep/G1_full

Cheers,

Olivier

> On 23 Jun 2022, at 11:35, 王世钰 <email address hidden> wrote:
>
> New question #702261 on MadGraph5_aMC@NLO:
> https://answers.launchpad.net/mg5amcnlo/+question/702261
>
> Dear expert
> I am interested in the fact that madgraph can generate NLO cross sections. After reading literature 1507.00020, I began to use the NLO tutorial carried in madgraph. As the tutorial moves on, I saw a prompt when I went to the launch step:
> If only partial sub level files are generated, enter launch -p,
> So I did, and the madgraph reported an error:
> Command "launch auto --parton" interrupted with error:
> Exception : program /home/ybf/Programs/wsy/MG5_ aMC_ v3_ 1_ 0/MY_ FIRST_ AMCTANLO_ RUN/SubProcesses/P0_ udx_ veep/ajob1 1.0 F 0 0 launch ends with non zero status: 127. Stop all computation
> Please report this bug on https://bugs.launchpad.net/mg5amcnlo
> More information is found in '/home/ybf/Programs/wsy/MG5_ aMC_ v3_ 1_ 0/MY_ FIRST_ AMCTANLO_ RUN/run_ 01_ tag_ 1_ debug. log'.
> Please attach this file to your report.
>
>
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