Could not determine the dependencies of task ':launcher:compileDebugJavaWithJavac'.
> Installed Build Tools revision 31.0.0 is corrupted. Remove and install again using the SDK Manager.
> Configure project :launcher
WARNING: The option 'android.enableR8' is deprecated and should not be used anymore.
It will be removed in a future version of the Android Gradle plugin, and will no longer allow you to disable R8.
Build-tool 31.0.0 is missing DX at <android-sdk-path>/sdk/build-tools/31.0.0/dx
File ~/.android/repositories.cfg could not be loaded.
Build-tool 31.0.0 is missing DX at <android-sdk-path>/sdk/build-tools/31.0.0/dx
buildscript{repositories{google()jcenter()}dependencies{// Must be Android Gradle Plugin 4.0.1 or later. For a list of// compatible Gradle versions refer to:// https://developer.android.com/studio/releases/gradle-pluginclasspath'com.android.tools.build:gradle:4.0.1'}}allprojects{repositories{google()jcenter()flatDir{dirs'libs'}}}
[null,null,["最后更新时间 (UTC)：2025-07-26。"],[[["\u003cp\u003eBuilding Android projects targeting Android 12 with Unity may result in errors due to incompatibility with Build Tools version 31.0.0.\u003c/p\u003e\n"],["\u003cp\u003eAs a workaround, use Build Tools version 30.0.3 by enabling custom Gradle templates and modifying the \u003ccode\u003ebuildToolsVersion\u003c/code\u003e in the generated files.\u003c/p\u003e\n"],["\u003cp\u003eProjects using Unity versions 2019.4, 2020.1, or 2020.2 require custom Gradle builds with Gradle 6.1.1 or later and Android Gradle Plugin 4.0.1 or later.\u003c/p\u003e\n"],["\u003cp\u003eApps targeting Android 12 need an explicit \u003ccode\u003eandroid:exported\u003c/code\u003e attribute in the AndroidManifest.xml file's \u003ccode\u003e<activity>\u003c/code\u003e tag.\u003c/p\u003e\n"]]],[],null,["# Build for Android 12 with Unity\n\nWhen building an Android project that targets Android 12 (SDK level 31), you may encounter the following error: \n\n Could not determine the dependencies of task ':launcher:compileDebugJavaWithJavac'.\n \u003e Installed Build Tools revision 31.0.0 is corrupted. Remove and install again using the SDK Manager.\n \u003e Configure project :launcher\n WARNING: The option 'android.enableR8' is deprecated and should not be used anymore.\n It will be removed in a future version of the Android Gradle plugin, and will no longer allow you to disable R8.\n Build-tool 31.0.0 is missing DX at \u003candroid-sdk-path\u003e/sdk/build-tools/31.0.0/dx\n File ~/.android/repositories.cfg could not be loaded.\n Build-tool 31.0.0 is missing DX at \u003candroid-sdk-path\u003e/sdk/build-tools/31.0.0/dx\n\nThis is caused by an incompatibility between Android Build Tools version 31.0.0 and the Unity build system. As of Android Build Tools version 31.0.0, [DX has been removed in favor of D8](https://android-developers.googleblog.com/2020/02/the-path-to-dx-deprecation.html), leading to breakage in Unity builds for Android.\n\nThis error may be triggered in the following scenarios:\n\n- Upgrading to ARCore Extensions for Unity's AR Foundation version 1.26,\n- Targeting Android SDK level 31 in any Unity project, regardless of ARCore Extensions version,\n- Targeting Android SDK level 30 in any Unity project while Build Tools version 31.0.0 is installed, regardless of ARCore Extensions version.\n\nWorkaround\n----------\n\nWe are working with Unity to resolve this incompatibility. In the meantime, follow instructions to build a project that targets Android 12:\n\n1. In **Project Settings \\\u003e Player \\\u003e Android \\\u003e Publishing Settings \\\u003e\n Build**, select both:\n\n 1. **Custom Main Gradle Template**,\n 2. **Custom Launcher Gradle Template**.\n\n2. Apply the following changes to both generated files:\n\n - `Assets/Plugins/Android/mainTemplate.gradle`\n - `Assets/Plugins/Android/launcherTemplate.gradle`\n\n If present, remove the following comment at the top of the file: \n\n // GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN\n\n Then modify `compileSdkVersion` and `buildToolsVersion` as follows: \n\n buildToolsVersion '30.0.3'\n\nWhen building, Unity will download Build-Tools version 30.0.3 and use it to build your project while maintaining the selected `targetSdkVersion`.\n\nCreate custom Gradle builds\n---------------------------\n\nOn Unity versions **2019.4** , **2020.1** , and **2020.2** , which are built with older versions, you will need to set a custom Gradle build to **Gradle version 6.1.1 or later** . You will also need **Android Gradle Plugin 4.0.1 or later**.\n| **Note:** Unity versions **2020.3.15** and **2021.1.16** now have built-in Gradle builds. Lower versions will still need custom Gradle builds.\n\nApps targeting SDK 31 require **Gradle Version 6.1.1 or later**.\n\n1. Go to **Preferences \\\u003e External Tools \\\u003e Android \\\u003e Gradle** , and set the custom Gradle build to **Gradle 6.1.1 or later** . See [Gradle build tool](https://gradle.org/releases/) for downloads.\n2. Apply the following changes to both generated files:\n\n - `Assets/Plugins/Android/mainTemplate.gradle`\n - `Assets/Plugins/Android/launcherTemplate.gradle`\n\n buildscript {\n repositories {\n google()\n jcenter()\n }\n dependencies {\n // Must be Android Gradle Plugin 4.0.1 or later. For a list of\n // compatible Gradle versions refer to:\n // https://developer.android.com/studio/releases/gradle-plugin\n classpath 'com.android.tools.build:gradle:4.0.1'\n }\n }\n\n allprojects {\n repositories {\n google()\n jcenter()\n flatDir {\n dirs 'libs'\n }\n }\n }\n\nApply changes for apps targeting Android 12\n-------------------------------------------\n\nIf your app targets Android 12, then you must explicitly declare the `android:exported` attribute. For all changes in Android 12, see [Behavior changes in Android 12](https://developer.android.com/about/versions/12/behavior-changes-12#exported).\n\n1. In **Project Settings \\\u003e Player \\\u003e Android \\\u003e Publishing Settings \\\u003e\n Build** , select **Custom Main Manifest**.\n\n2. Apply the following changes to `Assets/Plugins/Android/AndroidManifest.xml`:\n\n 1. If present, remove the following comment at the top of the file:\n\n \u003c!-- GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN--\u003e\n\n 2. Add the [`android:exported` attribute](https://developer.android.com/about/versions/12/behavior-changes-12#exported) to the `\u003cactivity\u003e` tag:\n\n \u003capplication\u003e\n \u003cactivity android:name=\"com.unity3d.player.UnityPlayerActivity\"\n android:theme=\"@style/UnityThemeSelector\"\n android:exported=\"true\"\u003e\n \u003cintent-filter\u003e\n \u003caction android:name=\"android.intent.action.MAIN\" /\u003e\n \u003ccategory android:name=\"android.intent.category.LAUNCHER\" /\u003e\n \u003c/intent-filter\u003e\n \u003cmeta-data android:name=\"unityplayer.UnityActivity\" android:value=\"true\" /\u003e\n \u003c/activity\u003e\n \u003c/application\u003e"]]
