Error Building Android APK

[freakout242]

Reposting in correct thread:

Hi Everyone, I am the newest of the new here. I am trying to build (the simplest) Android app, as a way of teaching myself Unity. I have run into an error that I can’t figure out. I have searched online and found a few “solutions” that didn’t fix the issue. Here is a screenshot of what is happing when I go to build.

Here is a list of things that I have tried.

1. Downloading Android Studio, downloading all Android SDKs and making sure Unity is pointed to the directory.
2. Downloading Android SDKs, by themselves, and pointing Unity to that directory (thinking that the Android Studio was set to Read Only)
3. Removing Android Studio all together and having Unity download it at the build (Unity would open powershell and I would end up and a endless loop of trying to download and install Level 31 SDK)
4. Upgrading Unity from 2020.3.19 to 2021.1.23
5. Downgrading Unity from 2020.3.19 to 2019.4.31
6. removing Java and reinstalling (currently running Java 8)
7. Setting Environmental variables to point at the Android SDKs and Java. (did this for both 1 and 2)
8. Downloaded new NDKs and had Unity point to those.
9. I tried this https://stackoverflow.com/questions…he-console-for-more-details/44394028#44394028
10. I downloaded multiple SDKs and Multiple versions of Android SDK Build Tools. (see Image below).
    
    
    

Now I am all out of ideas. Can anyone help me out with this. Thanks in advance.

[freakout242]

[Solved]
Once again I find myself figuring out the answer, after I ask the question.
There is a lot more to the Google Cardboard plugin then just load and go. After reviewing the quick start guide (in a little detail then I did at first) I realized that you have to edit some of the .xml files. Link below.

Quickstart for Google Cardboard for Unity | Google Developers