Yep. Same thing here.
I checked the mod file and it seems to be pretty much empty except for these four files and the locale folder:
control.lua
data.lua
info.json
item.lua
And these files seem devoid of data also.
I'm guessing maybe some sort of glitch occurred when the mod was being zipped up?
I'm eager to try this out. It sounds intriguing.
As a temporary workaround, the github source code seems complete. I just downloaded the complete master archive from there, saved it to my factorio mods folder, and manually changed the filename to "StoneAge_0.0.1.zip" and it loads and works. Can't say much more because I haven't played more than a minute or two with it.
