Here are some steps you might have overlooked when publishing your React VR project for the first time.
Here’s my first finished project: http://daviseford.com/tcpi-react-vr/
1.) You have to upload the static_assets folder yourself - it’s not included in the build folder.
2.) You need to modify your vr/build/index.html file to resemble this
3.) Seriously, pay careful attention to the index.html file
4.) If you’ve included any images using the source=require(‘img.png’) style of import, you need to update those images with their URI’s, like so
5.) Read the docs carefully - it’s all there, but scattered all over the place.