When I try adding textures and text files to my repo it all works, but when I try adding a .blend file I get this error. I\'ve tried a bunch of things I found here and on go
It's possible that you are overflowing the postbuffer.
The following command fixes the symptom for me:
git config http.postBuffer 524288000
See this related issue: https://stackoverflow.com/a/3605544/193785