I Can't Build and Run Google CardBoard to Android Phone?

I’ve been troubleshooting the build and run errors that I’ve been receiving while trying to deploy the GoogleVR DemoScene to my Samsung Galaxy S6 for a few days but so far, every error I fix produces a new one. I’ve come to an error that I can’t seem to find a fix for on any forums. When I click build an run in the build settings, it runs through the process until it disappears with no pop up box. I look in the console and I find this error:

Win32Exception: The system cannot find the file specified. (full error message provided in attached png)

I have tried installing every package in the up to date Android SDK manager, updated the Android SDK, updated my JDK and JRE, deleted all my JDK and JRE files and reinstalled them. So far, no luck. Can anyone help me with this problem? I’ve only recently been introduced to Unity and the GoogleCardBoard and I haven’t even been able to successfully deploy anything VR to my phone for testing purposes.

Did you define the Android SDK properly in Unity’s preferences? Also, can you make sure you have the “adb” program under the Android SDK folder ?