Image location: http://autobuilder.yoctoproject.org/pub/releases/yocto-1.5.4.rc1

Git rev: dora/de14d21bc6633ddeb810cef051b91ee322276496 

The Hob doesn't launch after BA boot up.

When ran "hob" command in terminal, I got the following error:
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Traceback (most recent call last):
  File "/home/builder/poky/bitbake/bin/bitbake", line 34, in <module>
    import bb
  File "/home/builder/poky/bitbake/lib/bb/__init__.py", line 77, in <module>
    from bb import fetch2 as fetch
  File "/home/builder/poky/bitbake/lib/bb/fetch2/__init__.py", line 1564, in <module>
    from . import wget
  File "/home/builder/poky/bitbake/lib/bb/fetch2/wget.py", line 40, in <module>
    from   bs4 import BeautifulSoup
  File "/home/builder/poky/bitbake/lib/bs4/__init__.py", line 30, in <module>
    from .builder import builder_registry, ParserRejectedMarkup
  File "/home/builder/poky/bitbake/lib/bs4/builder/__init__.py", line 4, in <module>
    from bs4.element import (
  File "/home/builder/poky/bitbake/lib/bs4/element.py", line 5, in <module>
    from bs4.dammit import EntitySubstitution
  File "/home/builder/poky/bitbake/lib/bs4/dammit.py", line 11, in <module>
    from htmlentitydefs import codepoint2name
ImportError: No module named htmlentitydefs
/home/builder/poky/bitbake/lib/bb/event.py:106: RuntimeWarning: Parent module 'bb' not found while handling absolute import
  from bb.msg import BBLogFormatter
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
  File "/usr/lib/python2.7/atexit.py", line 24, in _run_exitfuncs
    func(*targs, **kargs)
  File "/home/builder/poky/bitbake/lib/bb/event.py", line 106, in print_ui_queue
    from bb.msg import BBLogFormatter
  File "/home/builder/poky/bitbake/lib/bb/__init__.py", line 77, in <module>
    from bb import fetch2 as fetch
  File "/home/builder/poky/bitbake/lib/bb/fetch2/__init__.py", line 39, in <module>
    from bb import data
ImportError: cannot import name data
Error in sys.exitfunc:
Traceback (most recent call last):
  File "/usr/lib/python2.7/atexit.py", line 24, in _run_exitfuncs
    func(*targs, **kargs)
  File "/home/builder/poky/bitbake/lib/bb/event.py", line 106, in print_ui_queue
    from bb.msg import BBLogFormatter
  File "/home/builder/poky/bitbake/lib/bb/__init__.py", line 77, in <module>
    from bb import fetch2 as fetch
  File "/home/builder/poky/bitbake/lib/bb/fetch2/__init__.py", line 39, in <module>
    from bb import data
ImportError: cannot import name data
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