1、在build.gradle中添加如下代碼

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "chenwei.com.mymeadio"
        minSdkVersion 17
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    //☆☆☆☆☆☆
    multiDexEnabled true
    }
  
}

2.BaseActicity中添加如下代碼

 super.onCreate(savedInstanceState);
        MultiDex.install(this);