I'm also trying to get the amazon plugin to work because I am hoping to be able to tag each book with its respective category from amazon. However, I'm also getting this error on Windows beta 9.
Code:
Traceback (most recent call last):
File "calibre\gui2\dialogs\config.pyo", line 491, in add_plugin
File "C:\Program Files\calibre\library.zip\calibre\customize\ui.py", line 235, in add_plugin
File "C:\Program Files\calibre\library.zip\calibre\customize\ui.py", line 74, in load_plugin
InvalidPlugin: No valid plugin found in C:/Users/xxxxxxxxxx/Desktop/Book/Science-Textbook/amazon.zip
I'm adding a zipped amazon.py from the GUI when I get this. As for editing the default amazon.py file, I can't seem to find it, which is why I use the one from launchpad.
Thanks.