I am using Ubuntu 18.04 LTS and I am new in Ubuntu.
Crash file with name _usr_bin_gnome-shell.121.crash is getting generated inside /var/crash.
I read many posts that how to read/open .crash file for debugging but I am unable to open or read using apport-retrace and couldn't figure out what -dgb packages need to be installed and how to use them after installing them.
Also I tried apport-unpack but could't read the file.
Can anyone please describe all steps that how to read .crash file or what another tool can be used which is easy for new user to read .crash file from /var/crash.
Please answer this question if anyone know anything, I am really unable to read with all available solutions so far.