java - 用androidstudio写的读取手机通讯录的应用，写完每次一运行就已停止运行，不知道什么问题

这方面的只是还不是很懂，百度了也说的很乱，我想问问是我的JDK没有安装完整吗，我的API是23，
这个问题是什么意思：
Error running app: Instant Run requires 'Tools | Android | Enable ADB integration' to be enabled.

不好意思有点忙，我才看到你们的回复，这是错误的LOG

LOG的图片还是有点看不清，我把文字赋值贴在这里吧：

10-29 12:32:56.149: E/AndroidRuntime(1773): at android.os.Parcel.readException(Parcel.java:1425)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:185)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.database.DatabaseUtils.readExceptionFromParcel(DatabaseUtils.java:137)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.content.ContentProviderProxy.query(ContentProviderNative.java:366)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.content.ContentResolver.query(ContentResolver.java:372)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.content.ContentResolver.query(ContentResolver.java:315)
10-29 12:32:56.149: E/AndroidRuntime(1773): at com.example.yun.getphonenumber.MainActivity.onCreate(MainActivity.java:22)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.app.Activity.performCreate(Activity.java:5104)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1080)
10-29 12:32:56.149: E/AndroidRuntime(1773): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2144)
10-29 12:32:56.149: E/AndroidRuntime(1773): ... 11 more
10-29 12:32:56.160: E/SurfaceFlinger(786): ro.sf.lcd_density must be defined as a build property
10-29 12:32:56.370: E/SurfaceFlinger(786): ro.sf.lcd_density must be defined as a build property
10-29 12:33:42.870: E/ThrottleService(1206): problem during onPollAlarm: java.lang.IllegalStateException: problem parsing stats: java.io.FileNotFoundException: /proc/net/xt_qtaguid/iface_stat_all: open failed: ENOENT (No such file or directory)
: E/(): LogCat Connection error
: E/(): Device disconnected: 1
: E/(): Device disconnected