如何查找和修复android构建失败的来源‘：Unity项目中的transformClassesWithMultidexlistForRelease’

android {
    defaultConfig {
        multiDexEnabled true
    }
}

dependencies {
    implementation 'com.android.support:multidex:1.0.3'
}

import android.support.multidex.MultiDex;

public class MyApplication extends Application {
    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }
}

<application
    android:name=".MyApplication"
    ... >
    ...
</application>

package com.example.myapp;

import android.content.Context;
import android.support.multidex.MultiDex;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;

public class MainActivity extends AppCompatActivity {
    @Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }
}

<application
    android:name=".MainActivity"
    android:icon="@mipmap/ic_launcher"
    android:label="@string/app_name"
    android:theme="@style/AppTheme">
    <activity android:name=".MainActivity">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>