Pyleus v 0.3 error!

[Chisha14]

When running "pyleus build pyleus/examples/exclamation_topology/pyleus_topology.yaml", I get this error!
Traceback (most recent call last):
File "/home/hassan/anaconda3//bin/pyleus", line 6, in
main()
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/cli.py", line 54, in main
args.func(args)
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/commands/subcommand.py", line 105, in run_subcommand
self.run(configs)
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/commands/build_subcommand.py", line 40, in run
build_topology_jar(configs)
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/build.py", line 298, in build_topology_jar
verbose=configs.verbose,
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/build.py", line 226, in _create_pyleus_jar
verbose=verbose)
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/build.py", line 128, in _set_up_virtualenv
_remove_pyleus_base_jar(venv)
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/build.py", line 100, in _remove_pyleus_base_jar
if _path_contained_by(venv.path, base_jar_path):
File "/home/hassan/anaconda3/lib/python3.5/site-packages/pyleus/cli/build.py", line 85, in _path_contained_by
common_prefix = os.path.commonprefix([real_containing_path, real_path])
File "/home/hassan/anaconda3/lib/python3.5/genericpath.py", line 72, in commonprefix
s1 = min(m)
TypeError: unorderable types: bytes() < str()

@poros please help