KeyError: 'DW_AT_byte_size' error on Ubuntu-Linux 4.15.0_48-generic system using Python 2.7.12

Hello, after creating a volatility profile for an Ubuntu-Linux 4.15.0_48-generic system using version 2.6 and running it against a LiME sample created with

insmod lime-4.15.0-48-generic.ko "path=/home/developer/lime-4.15.0-48-generic.lime format=lime"

I get the following error:

root@nuc2:/home/developer/Downloads/volatility-master# python vol.py --profile=LinuxUbuntu4_15_0-48-genericx64 -f /home/developer/lime-4.15.0-48-generic.lime modules Volatility Foundation Volatility Framework 2.6 Traceback (most recent call last): File "vol.py", line 192, in main() File "vol.py", line 183, in main command.execute() File "/home/developer/Downloads/volatility-master/volatility/commands.py", line 116, in execute if not self.is_valid_profile(profsself._config.PROFILE): File "/home/developer/Downloads/volatility-master/volatility/plugins/overlays/linux/linux.py", line 216, in init obj.Profile.init(self, *args, **kwargs) File "/home/developer/Downloads/volatility-master/volatility/obj.py", line 862, in init self.reset() File "/home/developer/Downloads/volatility-master/volatility/plugins/overlays/linux/linux.py", line 227, in reset self.load_vtypes() File "/home/developer/Downloads/volatility-master/volatility/plugins/overlays/linux/linux.py", line 264, in load_vtypes vtypesvar = dwarf.DWARFParser(dwarfdata).finalize() File "/home/developer/Downloads/volatility-master/volatility/dwarf.py", line 71, in init self.feed_line(line) File "/home/developer/Downloads/volatility-master/volatility/dwarf.py", line 162, in feed_line self.process_statement(**parsed) #pylint: disable-msg=W0142 File "/home/developer/Downloads/volatility-master/volatility/dwarf.py", line 204, in process_statement self.vtypes[name] = [ int(data['DW_AT_byte_size'], self.base), {} ] KeyError: 'DW_AT_byte_size'

Python version is 2.7.12

I was using the dwarfdump associated with Ubuntu 16.01 xenial, which as 20120410-2+deb7u2build0.16.04.1.

Is this because version 2.6 doesn't support Linux 4.15.0-48-generic? Or should I use a later version of dwarfdump?