I was running gg>h through loop induced process when I encountered this problem. MG5_aMC>generate g g > h aS=2 aEW=1 [QCD] change syntax aEW=1 to QED^2=2 to correspond to UFO model convention Interpreting 'QED^2=2' as 'QED^2<=2' change syntax aS=2 to QCD^2=4 to correspond to UFO model convention Interpreting 'QCD^2=4' as 'QCD^2<=4' --------------------------------------------------------------------------- No Born diagrams found. Now switching to the loop-induced mode. Please also cite ref. 'arXiv:1507.00020' when using results from this mode. --------------------------------------------------------------------------- change syntax aEW=1 to QED^2=2 to correspond to UFO model convention Interpreting 'QED^2=2' as 'QED^2<=2' change syntax aS=2 to QCD^2=4 to correspond to UFO model convention Interpreting 'QCD^2=4' as 'QCD^2<=4' 1 processes with 4 diagrams generated in 0.094 s Total: 1 processes with 4 diagrams tutorial_aMCatNLO: You have just generated a new process. You can find more information on supported syntax by using: MG_aMC>help generate To list all defined processes, type MG_aMC>display processes If you want to know more about particles and multiparticles present, write MG_aMC>display particles MG_aMC>display multiparticles If you want to add a second process, use the add process command: MG_aMC>add process p p > e+ e- [QCD] @2 At this stage you can export your processes. This is done simply by typing: MG_aMC>output MY_FIRST_AMCATNLO_RUN MG5_aMC>ouutput ggh-loop Command "ouutput" not recognized, please try again MG5_aMC>output ggh-loop INFO: initialize a new directory: ggh-loop INFO: remove old information in ggh-loop INFO: Organizing processes into subprocess groups INFO: Generating Helas calls for process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2 INFO: Processing color information for loop process: g g > h [ noborn = QCD ] QCD^2<=4 QED^2<=2 INFO: Creating color matrix loop process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2 INFO: Creating files in directory /home/zhaowei/Downloads/MG5_aMC_v3.3.1/MG5_aMC_v3_3_1/ggh-loop/SubProcesses/PV0_0_1_gg_h INFO: Computing diagram color coefficients INFO: Drawing loop Feynman diagrams for Process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2 INFO: Creating files in directory P0_gg_h INFO: Generating Feynman diagrams for Process: g g > h WEIGHTED<=4 [ noborn = QCD ] QCD^2<=4 QED^2<=2 Command "output ggh-loop" interrupted with error: TypeError : '>' not supported between instances of 'int' and 'str' Please report this bug on https://bugs.launchpad.net/mg5amcnlo More information is found in 'MG5_debug'. Please attach this file to your report.

When	Who	Action	New State
2022-04-15	Olivier Mattelaer	Answer	Answered
2022-04-15	Olivier Mattelaer	Answer	Answered
2022-04-16	Zhaowei Song	Comment	Answered
2022-04-16	Olivier Mattelaer	Answer	Answered

MadGraph5_aMC@NLO

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