Unable to publish to Android when I am under the 30 day trial period

I am unable to generate an Android app from my Unity game

I have the trial version of Unity3D and I have had it less than 30 days. According to this other question I am supposed to be able to export my game to android because I am under the 30 day trial period. Is this correct?

My game only contains 2 objects; a main camera and a plane. Theres only 1 C# script that creates a button. So the code should be compatible with Android right? I am on Windows 7 and I have Android installed on my computer.

When I click ‘build’ then go to select ‘Android’ it says "Your licence does not cover Android Publishing’. This is really frustrating because I need to perform a series of tests on android - that test performance, capability, rendering speed, etc. on the native device - before I even consider forking out $1500.

You can only generate to android if you have purchased the android license. You cannot generate an .apk under the 30 day trial. You have to buy a license for android or ios to be able to build and run on these platforms.