Hi,
I have the following error,
epub.js> git submodule update --init --recursive
fatal: reference is not a tree: e9790315c2510315e270a7a4c4921825e9918039
Unable to checkout 'e9790315c2510315e270a7a4c4921825e9918039' in submodule path 'books'
Is the repo in a good state?
Thanks for your help.
Bin He