DDD/GDB Error: no core file handler recognizes format


I am working on the labs from ELC2018/Embedded Apprentice Linux Engineer. In the GDB Debugging Lab 2, there are steps to generate a core dump file on the Pocket Beagle (I am using the BBBW) and analyze it on a host machine using DDD.

When I try to open the core file on my Ubuntu host, I get an error saying “no core file handler recognizes format”. Since I was able to launch DDD with the Arm debugger (ddd --debugger arm-none-eabi-gdb), I think I have the necessary programs/packages installed on my host.

I would appreciate any inputs to resolve this issue.