zenoss@fc-zenext01:/tmp$ zenpack --install ZenPacks.BlakeDrager.fping-1.0.egg
ERROR:zen.ZenPackCmd:zenpack command failed
Traceback (most recent call last):
  File "/opt/zenoss/Products/ZenUtils/zenpack.py", line 406, in <module>
    zp.run()
  File "/opt/zenoss/Products/ZenUtils/zenpack.py", line 134, in run
    previousVersion= self.options.previousVersion)
  File "/opt/zenoss/Products/ZenUtils/ZenPackCmd.py", line 249, in InstallEggAndZenPack
    forceRunExternal=forceRunExternal)
  File "/opt/zenoss/Products/ZenUtils/ZenPackCmd.py", line 342, in InstallDistAsZenPack
    ' %s such entry points.' % len(entryMap))
ZenPackException: A ZenPack egg must contain exactly one zenoss.zenpacks entry point.  This egg appears to contain 0 such entry points.