fix：1、添加sdk。2、添加h5

Assets/Plugins/Android/baseProjectTemplate.gradle

@@ -1,3 +1,21 @@
+// GENERATED BY UNITY. REMOVE THIS LINE TO PREVENT OVERWRITING WHEN CHANGING PLAYER SETTINGS
+
+// 第一步：把用来修补 D8 编译器的 buildscript 独立提拔到最外层的最顶部
+buildscript {
+    repositories {
+        **BUILD_SCRIPT_REPOSITORIES**
+        // 1. 添加存放新版 D8 编译器的谷歌官方仓库
+        maven { url 'https://storage.googleapis.com/r8-releases/raw' }
+    }
+
+    dependencies {
+        // 2. 强制指定更高级别的 R8/D8 编译器，解决 Meta SDK 引发的 NullPointerException
+        classpath 'com.android.tools:r8:8.2.24'
+        **BUILD_SCRIPT_DEPENDENCIES**
+    }
+}
+
+// 第二步：紧随其后的是原配 plugins 块（绝对不能被allprojects压在下面）
 plugins {
     // If you are changing the Android Gradle Plugin version, make sure it is compatible with the Gradle version preinstalled with Unity
     // See which Gradle version is preinstalled with Unity here https://docs.unity3d.com/Manual/android-gradle-overview.html
@@ -8,6 +26,13 @@ plugins {
     **BUILD_SCRIPT_DEPS**
 }
 
+// 第三步：将通用的 allprojects 移到文件下方安全区
+allprojects {
+    repositories {
+        **PROJECT_REPOSITORIES**
+    }
+}
+
 task clean(type: Delete) {
     delete rootProject.buildDir
-}
+}