Marvin xd error, IOS reader

When Calibre 3.0 starts up, I get a message that I need to install Marvin XD, iOS reader. I find the plug in, but get an error when I try to install it.

Here is the error:
calibre, version 3.0.0
ERROR: Install plugin failed: A problem occurred while installing this plugin. This plugin will now be uninstalled. Please post the error message in details below into the forum thread for this plugin and restart calibre.

Traceback (most recent call last):
File "site-packages/calibre/gui2/dialogs/plugin_updater.py", line 726, in _install_clicked
File "site-packages/calibre/customize/ui.py", line 464, in add_plugin
File "site-packages/calibre/customize/ui.py", line 668, in initialize_plugin
InvalidPlugin: Initialization of plugin Traceback (most recent call last):
File "site-packages/calibre/customize/ui.py", line 662, in initialize_plugin
File "calibre_plugins.ios_reader_apps.__init__", line 898, in initialize
File "site-packages/calibre/devices/idevice/libimobiledevice.py", line 214, in __init__
File "site-packages/calibre/devices/idevice/libimobiledevice.py", line 460, in load_library
File "lib/python2.7/ctypes/__init__.py", line 440, in LoadLibrary
File "lib/python2.7/ctypes/__init__.py", line 362, in __init__
OSError: dlopen(/Applications/calibre.app/Contents/Frameworks/libimobiledevice.5.dylib, 6): image not found
failed with traceback:
Traceback (most recent call last):
File "site-packages/calibre/customize/ui.py", line 662, in initialize_plugin
File "calibre_plugins.ios_reader_apps.__init__", line 898, in initialize
File "site-packages/calibre/devices/idevice/libimobiledevice.py", line 214, in __init__
File "site-packages/calibre/devices/idevice/libimobiledevice.py", line 460, in load_library
File "lib/python2.7/ctypes/__init__.py", line 440, in LoadLibrary
File "lib/python2.7/ctypes/__init__.py", line 362, in __init__
OSError: dlopen(/Applications/calibre.app/Contents/Frameworks/libimobiledevice.5.dylib, 6): image not found