Hi Andy,

my bad this seems to be a different issue than the one I was thinking about.
You are actually not using lhapdf but using the default PDF set.

Could you run the following two commands:
ls /Users/andypark/Desktop/Research/MG5_aMC_v2_6_4/MY_FIRST_MG5_RUN//lib/Pdfdata/  
and
ls  /Users/andypark/Desktop/Research/MG5_aMC_v2_6_4/Template/LO/lib/Pdfdata/  

In my case, I have the following file:
[2.6.4]$ ls Template/LO/lib/Pdfdata/
NNPDF23_lo_as_0119_qed_mem0.grid	cteq6l.tbl
NNPDF23_lo_as_0130_qed_mem0.grid	cteq6l1.tbl
NNPDF23nlo_as_0119_qed_mem0.grid	cteq6m.tbl
cteq5l.tbl				mrsb.dat
cteq5m.tbl				mrse.dat
cteq6d.tbl				mrst2002nlo.dat

Which include the file that is reported missing in your case.
If the file is missing, you can add those manually (but it might be interesting to understand why they went missing). If they are there I would need to look how that part of the code search for that file. It might be related to some environment variable which are set in your case to a wrong path.

Cheers,

Olivier


> On 11 Nov 2018, at 22:08, Andy Park <email address hidden> wrote:
> 
> Hi Olivier,
> 
> I have installed Mg5aMC 2.6.4 and installed Delphes, Pythia8,
> MadAnalysis5 using 2.6.4. I am getting the same error with the message:
> 
> Error when reading /Users/andypark/Desktop/Research/MG5_aMC_v2_6_4/MY_FIRST_MG5_RUN/SubProcesses/P1_gg_ttx/G1/results.dat
> Command "generate_events run_01" interrupted with error:
> IOError : [Errno 2] No such file or directory: '/Users/andypark/Desktop/Research/MG5_aMC_v2_6_4/MY_FIRST_MG5_RUN/SubProcesses/P1_gg_ttx/G1/results.dat'
> Please report this bug on https://bugs.launchpad.net/mg5amcnlo
> More information is found in '/Users/andypark/Desktop/Research/MG5_aMC_v2_6_4/MY_FIRST_MG5_RUN/run_01_tag_1_debug.log'.
> Please attach this file to your report.
> 
> when running the exact same script in the tutorial. I have attached my
> /Users/andypark/Desktop/Research/MG5_aMC_v2_6_4/MY_FIRST_MG5_RUN/SubProcesses/P1_gg_ttx/G1/run1_app.log
> file.
> 
> Best,
> Andy Park
> 
> 
> ** Attachment added: "run1_app.log"
>   https://bugs.launchpad.net/mg5amcnlo/+bug/1800709/+attachment/5211518/+files/run1_app.log
> 
> -- 
> You received this bug notification because you are subscribed to
> MadGraph5_aMC@NLO.
> https://bugs.launchpad.net/bugs/1800709
> 
> Title:
>  No such file 'results.dat'
> 
> Status in MadGraph5_aMC@NLO:
>  Fix Released
> 
> Bug description:
>  Hello,
> 
>  I just started using Madgraph and I ran into an error when I was doing the tutorial. I followed the tutorial and did 
> 
>     generate p p > t t~
>     output MY_FIRST_MG5_RUN
>     launch MY_FIRST_MG5_RUN
> 
>  then I got into an error:
> 
>  Error when reading /Users/andypark/Desktop/Research/MG5_aMC_v2_6_3_2/MY_FIRST_MG5_RUN/SubProcesses/P1_gg_ttx/G1/results.dat
>  Command "generate_events run_01" interrupted with error:
>  IOError : [Errno 2] No such file or directory: '/Users/andypark/Desktop/Research/MG5_aMC_v2_6_3_2/MY_FIRST_MG5_RUN/SubProcesses/P1_gg_ttx/G1/results.dat'
>  Please report this bug on https://bugs.launchpad.net/mg5amcnlo
>  More information is found in '/Users/andypark/Desktop/Research/MG5_aMC_v2_6_3_2/MY_FIRST_MG5_RUN/run_01_tag_1_debug.log'.
>  Please attach this file to your report.
> 
>  I am using Madgraph5 v2.6.3.2. I have attached my
>  run_01_tag_1_debug.log file.
> 
>  Best,
>  Andy Park
> 
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