My name is Hannah and I have been using the 'Experiments with Virtual Reality and MIT App Inventor' manual to create a VR app for my small business. My app has a similar layout to the example Virtuality app attached and discussed in this manual. However, when I built my app using the manual and also downloaded the virtuality app to test it on my Android mobile phone it would not run saying there was an error in loading. My phone is an up-to-date model and was able to download the MIT app companion, the google cardboard, and the MITVRhelper app and they all did not work in loading my virtuality app. I also tried sharing my app using this link: http://appinventor.mit.edu/explore/ai2/share.html and it did not work on my phone. Please does anyone have any suggestions for how I can resolve this issue? I am new to app development and still learning about all the functions on MIT app inventor.