unity gradle 问题解决和研究

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.

打开文件找到':gradle:3.6.0'修改为':gradle:3.4.0'

---

// GENERATED BY UNITY. REMOVE THIS COMMENT TO PREVENT OVERWRITING WHEN EXPORTING AGAIN
buildscript {
	repositories {

        //国内地址
        maven{ url '/repository/google' }
		maven{ url '/repository/jcenter' }

        
		google()
		jcenter()
		//重复项目 解决问题Failed to resolve: :picasso
		maven {
			url "/maven2"
		}
	}

	dependencies {
		classpath ':gradle:3.4.0'
	}
}

allprojects {
	repositories {
		google()
		flatDir {
			dirs 'libs'
			dirs '../lib_au4399_sdk/libs' //保证该相对路径可以定位到lib_au4399_sdk的libs文件夹
		}
		maven {
			url "/maven2"
		}
	}
}

apply plugin: ''

dependencies {
	compile fileTree(dir: 'libs', include: ['*.jar'])
	//引入4399广告SDK依赖
	implementation project(':lib_au4399_sdk')
}

android {
	compileSdkVersion 29
	buildToolsVersion '29.0.0'

	defaultConfig {
		minSdkVersion	16
		targetSdkVersion 29
		applicationId ''
		ndk {
			abiFilters 'armeabi-v7a', 'x86'
		}
		versionCode	1
		versionName	'0.1'
	}

	lintOptions {
		abortOnError false
	}

	aaptOptions {
		noCompress '.unity3d', '.ress', '.resource', '.obb'
	}


	buildTypes {
		debug {
			minifyEnabled false
			useProguard false
			proguardFiles getDefaultProguardFile(''), ''
			jniDebuggable true
		}
		release {
			minifyEnabled false
			useProguard false
			proguardFiles getDefaultProguardFile(''), ''
//			signingConfig  //Could not find :groovy-all
		}
	}
	packagingOptions {
		doNotStrip "*/armeabi-v7a/*.so"
		doNotStrip "*/x86/*.so"
	}

}