android unable to resolve static method ****: 解决方法

 1、app-build.gradle 添加 compile 'com.android.support:multidex:1.+'

2、dexOptions { incremental true javaMaxHeapSize "4g" } 

3、在defaultConfig中添加 multiDexEnabled = true

4、在application中添加 

@Override
    protected void attachBaseContext(Context base) {
        super.attachBaseContext(base);
        MultiDex.install(this);
    }