Importing .aar in android Studio

Question

I am not very experienced in Android Studio and I have tried countless ways to solve this issue with no success.

Goal: Import an .aar file as a library into an Android Studio app.

Problem:

1. I have a .aar file (product_test-debug.aar)
2. I imported it into an Android Studio empty app, using:
   • File → New Module → Import JAR/AAR Package
3. I already had one issue in this phase, perhaps due to the question mark in the .aar file; after selecting the file, Android Studio studio would tell me it didnt exist. This error mysteriously disapeared so I'll carry on.

4. The .aar file was added. However, when I switch from Android to Project mode, I can see the file still shows a question mark.

5. Ignoring the question mark, I did 3 things next, following a successful guide:

   • In the settings-gradle, I modified the only line to:
   • In the build.gradle (Module:app), I added the first dependency:
   • Still in this script, I commented the following line:

6. After all these steps, I have tried to sync the gradle and it still does not recognize the .aar. These are the errors:

I tried to put the .aar file into the libs folder, and alter this function in build.gradle(Project:MyApplication) to this:

But it doesn't solve anything. I know what I am trying to do is possible because of the guide, but I don't know what I am missing. The guide is this one for reference:

https://medium.com/@ericdejesus/im-getting-this-error-whenever-i-try-to-build-to-project-from-unity-any-idea-how-to-solve-78d5c22a4571

(Btw for context, I am doing this to be able to launch a sample Unity app from an Android activity. In this case, the Unity app is a spinning cube.)

Thank you very much for your time and assistance in this matter.

Answer 1

The first line of build.gradle in product_test-debug should be :

apply plugin: 'com.android.library'

And add :path in build.gradle of app :

compile project(path: ':product_test-debug')