Nativescript app deploys, but doesn't appear on device - android

I'm just starting to learn Nativescript, cause I want to develop an app version of a site I made. I went through their tutorial, and had no problems there. Then I created my own app using tns create and then added the Android platform using tns platform add android. Then I created a few pages, and tried to run it with tns run android, and it will successfully build and says it's deployed on the correct device (either Genymotion or my S6), but the app will not show up at all.
I tried creating another app with the basic template tns create makes, and running just that as is, and that won't show up either. The sampleGroceries tutorial app continues to show up though.
What could I be missing?

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I am getting started with developing an application for Android using Qt 5.8 and am running into issues running a basic application. When I run a basic application on an Android emulator, the application fails to load and a lot of errors are printed to the Qt console. Text file of errors
Images of Qt Creator, emulator, and errors
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The error messages that show up in the Qt Designer are and here is a file dump of the whole list of errors that showed up from trying to run the app.
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I use phonegap build a app,and run phonegap emulate android, and I uninstall the app .
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In your command prompt
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