Traceback (most recent call last):
  File "/usr/bin/lttng-cputop", line 9, in <module>
    load_entry_point('lttnganalyses==0.5.4', 'console_scripts', 'lttng-cputop')()
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 351, in load_entry_point
    return get_distribution(dist).load_entry_point(group, name)
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2363, in load_entry_point
    return ep.load()
  File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2088, in load
    entry = __import__(self.module_name, globals(),globals(), ['__name__'])
  File "/usr/lib/python3/dist-packages/lttnganalyses/cli/cputop.py", line 27, in <module>
    from .command import Command
  File "/usr/lib/python3/dist-packages/lttnganalyses/cli/command.py", line 32, in <module>
    from babeltrace import TraceCollection
  File "/usr/lib/python3/dist-packages/babeltrace.py", line 39, in <module>
    _babeltrace = swig_import_helper()
  File "/usr/lib/python3/dist-packages/babeltrace.py", line 35, in swig_import_helper
    _mod = imp.load_module('_babeltrace', fp, pathname, description)
  File "/usr/lib/python3.4/imp.py", line 243, in load_module
    return load_dynamic(name, filename, file)
ImportError: /usr/lib/python3/dist-packages/_babeltrace.cpython-34m-x86_64-linux-gnu.so: undefined symbol: ctf_find_tc_stream_packet_intersection_union