Dear Omar, I am getting a segmentation fault error when I am reading dst files, and I didn't manage to figure out the cause. I shrank the code to the minimum to reproduce the problem (it is attached). Could you please take a look into it? Some additional info that might help to find the cause of error: The way this file produced: A slic output file from /mss/hallb/hps/production/slic/tritrig/2pt2/ was read out with HPS_Java using HPS2014TruthReadoutToLcio.lcsim and then reconstructed using HPS2014OfflineTruthRecon.lcsim, later with the latest version of dst (downloaded yesterday) is converted into root file (this file is also attached). The compile command: g++ test3.cc -o test3.exe -Wl,--no-as-needed -L/usr/local/hps_dst/hps-dst/build/lib -lHpsEvent -I/usr/local/hps_dst/hps-dst/include/hps_event/ -I/usr/local/hps_dst/hps-dst/include/dst -I/usr/local/hps_dst/hps-dst/include/hps_event/utils `root-config --cflags` `root-config --libs` Rafo ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the HPS-SOFTWARE list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=HPS-SOFTWARE&A=1