Port new versions of Google Camera Apk to Moto X 2014

Good Afternoon,
Ive searched around but could not find anything. I am curently using V2.7. Would anyone on here be able to port a V3.0 or greater Google Camera Apk to our phone? It installs no problem and camera works fine. When you try to use the video camera it says, "can't connect to camera." then force closes.
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Thanks!

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