Same problem here, found any solution?
Since this has been unanswered a couple of times here: A dirty hack-y workaround is to store assets base64-encoded in code and either load them directly from base64 or recreate them in the file system so they can be later used as usual.
- There's a gist that helped me doing the decoding: https://gist.github.com/satoruhiga/1687325
- For saving files, use ofBufferToFile()
Best, Benni.