Bug Help - Unable to build game / "Build completed with a result of 'Failed'"

Hello,

I am trying to test a very rough demo of my game but upon exporting it I am getting a whole BUNCH of errors that are unfamiliar to me - I've never had issues building 2D games with Unity but for some reason spreading out into 3D has been problematic.

Among the MANY errors I am getting are:

- UnityEditor.BuildPlayerWindow+BuildMethodException: 3 errors
- Build completed with a result of 'Failed'
- A pop-up to download an application called "xcrun" - this happens every single time I try to build the game

I understand this post might be a little vague - but this situation is completely new to me so I'm just trying to make sense of it. Is this an issue with the code I have written? Or is this a more behind-the-scenes issue that requires me to install an external application or change something in my Player Settings? Any help would be greatly appreciated. I have also attached a screenshot for further reference.

 

How to troubleshoot build failures:

First, make a blank project with a single blank scene and prove that it builds successfully.

If the blank project does NOT build, go fix your Unity installation or your other tools, such as Android SDK, NDK, JDK, etc. It may even be necessary to change to a different version of Unity3D. It is generally best to stay with LTS versions of Unity3D.

Until you can build a blank project to the target platform, don't fiddle with anything else.

Once you can build a blank project, now bisect the problem by bringing over parts of your current project and building it one subsystem at a time, perhaps stubbing things out that might trigger compiler errors.

Most often things that prevent building are third-party libraries such as Firebase.

Once you identify the subsystem, go to the documentation for it and make sure you are doing it correctly.

It may also be helpful to work through a tutorial or two for whatever subsystem is making the build fail.

Android build not building:

Recently (circa July 2022) there have been reports of Unity's installer failing to install the Android Tools.

https://forum.unity.com/threads/cant-build-for-android.1306098/

Here was how I brought up Unity2020.3.41 and the Android SDK 31 on October 30, 2022:

https://forum.unity.com/threads/aab...y-2021-3-8-with-jdk-1-8.1322211/#post-8551193

Android Gradle errors and other related stuff:

https://forum.unity.com/threads/unity-gradle-bug-please-help.1368018/#post-8625789