Bonjour, copying this file from ubuntu 16.04 seems to make it work.
Ubunto python-dfvfs 20160203-2 ╭─ ✘ lours@lours ╰─☛ ll /usr/lib/python2.7/dist-packages/dfvfs/serializer/protobuf_serializer.py* -rw-r--r-- 1 root root 4,6K févr. 4 00:47 /usr/lib/python2.7/dist-packages/dfvfs/serializer/protobuf_serializer.py -rw-r--r-- 1 root root 4,7K juil. 16 11:46 /usr/lib/python2.7/dist-packages/dfvfs/serializer/protobuf_serializer.pyc ╭─ lours@lours ╰─☛ ll /usr/lib/python2.7/dist-packages/dfvfs/proto total 28K -rw-r--r-- 1 root root 24 févr. 4 00:47 __init__.py -rw-r--r-- 1 root root 143 juil. 16 11:46 __init__.pyc -rw-r--r-- 1 root root 11K févr. 4 00:47 transmission_pb2.py -rw-r--r-- 1 root root 6,3K juil. 16 11:46 transmission_pb2.pyc The problem is not with plaso but with python-dfvfs Thanks
