Why does my accelerometer stop working after I add google cardboard?

I'm developing my 2nd android app for Google Cardboard and I need to access the accelerometer(the x axis specifically). According to multiple sources, the way to get the acceleration is Input.acceleration (a Vector3 in case you didn't know). I made a test game where i just read the accelerometer and put the vector into a GUI. the values showed up as expected, but when I did the exact same thing on my real game, the whole vector was (0,0,0). I did some more testing and I have reached the conclusion that the google cardboard extension was messing up the accelerometer. How can I use Input.acceleration when I have my google cardboard library in?

One last thing: At the bottom of my Unity window It says "Unable to find activity in manifest. You need to make sure orientation attribute is set to fullSensor manually."