persistent broken ZenPacks

Tried to install the LinuxMonitor zenpack on4.2.5 zenoss. It failed. Now I can't remove the zenpack. When I try to remove the zenpack I get:

zenpack --remove ZenPacks.zenoss.LinuxMonitor-2.1.0.egg
ERROR:zen.ZenMessaging:Error encountered while processing ZenPacks.zenoss.LinuxMonitor
Traceback (most recent call last):
File "/opt/zenoss/Products/ZenMessaging/queuemessaging/schema.py", line 58, in _getZenPackSchemas
pkg_path = zpkg.load().__path__[0]
File "/opt/zenoss/lib/python/pkg_resources.py", line 1954, in load
entry = __import__(self.module_name, globals(),globals(), ['__name__'])
File "/opt/zenoss/ZenPacks/ZenPacks.zenoss.LinuxMonitor-2.1.0.egg/ZenPacks/zenoss/LinuxMonitor/__init__.py", line 24, in
ImportError: cannot import name schema
ERROR:zen.ZenossStartup:Error encountered while processing ZenPacks.zenoss.LinuxMonitor
Traceback (most recent call last):
File "/opt/zenoss/Products/ZenossStartup/__init__.py", line 27, in
pkg_path = zpkg.load().__path__[0]
File "/opt/zenoss/lib/python/pkg_resources.py", line 1954, in load
entry = __import__(self.module_name, globals(),globals(), ['__name__'])
File "/opt/zenoss/ZenPacks/ZenPacks.zenoss.LinuxMonitor-2.1.0.egg/ZenPacks/zenoss/LinuxMonitor/__init__.py", line 13, in
ImportError: cannot import name zenpacklib
ERROR:zen.ZenPackCmd:zenpack command failed
Traceback (most recent call last):
File "/opt/zenoss/Products/ZenUtils/zenpack.py", line 487, in
zp.run()
File "/opt/zenoss/Products/ZenUtils/zenpack.py", line 143, in run
self.connect()
File "/opt/zenoss/Products/ZenUtils/ZenScriptBase.py", line 52, in connect
setDescriptors(self.dmd)
File "/opt/zenoss/Products/ZenRelations/ZenPropertyManager.py", line 663, in setDescriptors
module = __import__(zpkg.module_name, globals(), locals(), fromlist)
File "/opt/zenoss/ZenPacks/ZenPacks.zenoss.LinuxMonitor-2.1.0.egg/ZenPacks/zenoss/LinuxMonitor/__init__.py", line 13, in
ImportError: cannot import name zenpacklib

zenhub will not start. The error is:

2016-11-28 17:19:19,184 INFO zen.Relations: Ignoring unresolvable object '

Any suggestions would be appreciated. Thanks.