Problem MG5 on macOS Catalina
Dear experts,
I have a problem running MG5 since I updated to macOS Catalina (v.10.15.6). I have tried a simple sample generation with v2.6.7, v2.8.0 and v3.0.3 where I got the same error.
After running ./bin/mg5_aMC I only called generate p p > t t~ which after launch produces the following error:
INFO: Update the dependent parameter of the param_card.dat
Generating 10000 events with run name run_01
survey run_01
INFO: compile directory
compile Source Directory
Using random number seed offset = 33
INFO: Running Survey
Creating Jobs
Working on SubProcesses
INFO: P1_gg_ttx
Error detected in "generate_events "
write debug file /Users/
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MadGraph5Error : A compilation Error occurs when trying to compile /Users/
The compilation fails with the following output message:
gfortran -O -w -fbounds-check -fPIC -ffixed-
gfortran -O -w -fbounds-check -fPIC -ffixed-
gfortran -o gensym symmetry.o idenparts.o -L../../lib/ -lmodel -lgeneric -lpdf -lstdc++
ld: library not found for -lSystem
collect2: error: ld returned 1 exit status
make: *** [gensym] Error 1
Hope you can help me with this.
Kind regards,
Pim
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- Pim Verschuuren
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