FAQ

1. Steps to Upgrade Gradle Version for Unity Versions Before 2020.3.15

Go to Player Settings -> Player -> Android Tab -> Publish Settings -> Build, and then check Custom Base Gradle Template, Custom Launcher Gradle Template, and Custom Main Gradle Template.

The following changes apply to the three files mainTemplate.gradle, launcherTemplate.gradle, and baseProjectTemplate.gradle generated in the Assets/Plugins/Android/ folder.

Open baseProjectTemplate.gradle and modify the file content:

dependencies {
    ...
    // Change version 3.x.0 to 4.0.0
    //classpath 'com.android.tools.build:gradle:3.x.0'
    classpath 'com.android.tools.build:gradle:4.0.0'
}

Open both mainTemplate.gradle and launcherTemplate.gradle files, find the lintOptions tag, and add the checkReleaseBuilds false configuration:

lintOptions {
    abortOnError false
    checkReleaseBuilds false
}

Additionally, to align the Gradle version with the Android Gradle Plugin version, you need to update the Gradle version. Download Gradle version 6.5.0, extract it to a custom folder, and uncheck Preferences -> External Tools -> Android -> Gradle Installed with Unity (recommend) in Unity. Instead, select the path to the extracted Gradle folder, such as <some path\>/gradle-6.5.0.