because the manifest can only be in the root of the .mcpack file I don't see how we can package a resource add-on and a behavior add-on together. each needs it's own manifest file.
I tried - this didn't work
.mcpack
– \behavior_packs
pack_manifest.json
\entities
– \resource_packs
pack_manifest.json
The only thing I was able to make work is
.mcpack
– pack_manifest.json
– \entities
i'm using the 1.0.4 version of the add-on's .json files with 1.0.9 mcpe
This issue also happened to me on Windows 10 beta v 0.13.1.
I've attached three files.
The two individual behaviors and resources .mcpack files work. Minecraft imports them successfully.
The third file is the same behavior and resource add-on files put together in one compressed file, but pushed down one directory inside the .mcpack file. This one doesn't import into Minecraft. I am assuming I need to push them down one directory because of the conflicting file manifest.json because I want to package the add-on as 1 complete file.