您好我正在尝试在Android中实施google api。我显示了地图。现在我想用2个用户给定地址的路由实现相同的功能。首先，我尝试使用单个文本框和按钮进行显示。我在logcat中收到以下错误：
01-28 07:14:29.500: W/GooglePlayServicesUtil(827): Google Play Store is missing.
01-28 07:14:29.550: W/GooglePlayServicesUtil(827): Google Play Store is missing.
01-28 07:14:29.550: W/GooglePlayServicesUtil(827): Google Play Store is missing.
01-28 07:14:29.590: W/GooglePlayServicesUtil(827): Google Play Store is missing.
01-28 07:14:29.590: W/GooglePlayServicesUtil(827): Google Play Store is missing.
01-28 07:14:29.670: W/GooglePlayServicesUtil(827): Google Play Store is missing.
01-28 07:14:29.690: W/GooglePlayServicesUtil(827): Google Play Store is missing.
01-28 07:14:30.030: I/Choreographer(827): Skipped 54 frames! The application may be doing too much work on its main thread.
01-28 07:14:31.530: D/gralloc_goldfish(827): Emulator without GPU emulation detected.
01-28 07:10:03.846: I/Choreographer(827): Skipped 61 frames! The application may be doing too much work on its main thread.
01-28 07:10:12.196: D/AndroidRuntime(827): Shutting down VM
01-28 07:10:12.196: W/dalvikvm(827): threadid=1: thread exiting with uncaught exception (group=0xb3aaeb90)
01-28 07:10:12.236: E/AndroidRuntime(827): FATAL EXCEPTION: main
01-28 07:10:12.236: E/AndroidRuntime(827): Process: com.example.locationgooglemap, PID: 827
01-28 07:10:12.236: E/AndroidRuntime(827): java.lang.NullPointerException
01-28 07:10:12.236: E/AndroidRuntime(827): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1417)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.app.Activity.startActivityForResult(Activity.java:3423)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.app.Activity.startActivityForResult(Activity.java:3384)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.support.v4.app.FragmentActivity.startActivityForResult(FragmentActivity.java:839)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.app.Activity.startActivity(Activity.java:3626)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.app.Activity.startActivity(Activity.java:3594)
01-28 07:10:12.236: E/AndroidRuntime(827): at com.google.android.gms.dynamic.a$5.onClick(Unknown Source)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.view.View.performClick(View.java:4424)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.view.View$PerformClick.run(View.java:18383)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.os.Handler.handleCallback(Handler.java:733)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.os.Handler.dispatchMessage(Handler.java:95)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.os.Looper.loop(Looper.java:137)
01-28 07:10:12.236: E/AndroidRuntime(827): at android.app.ActivityThread.main(ActivityThread.java:4998)
01-28 07:10:12.236: E/AndroidRuntime(827): at java.lang.reflect.Method.invokeNative(Native Method)
01-28 07:10:12.236: E/AndroidRuntime(827): at java.lang.reflect.Method.invoke(Method.java:515)
01-28 07:10:12.236: E/AndroidRuntime(827): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
01-28 07:10:12.236: E/AndroidRuntime(827): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:593)
01-28 07:10:12.236: E/AndroidRuntime(827): at dalvik.system.NativeStart.main(Native Method)
01-28 07:10:12.296: D/dalvikvm(827): GC_FOR_ALLOC freed 159K, 8% free 3122K/3364K, paused 35ms, total 47ms
任何人都可以给我一个解决方案吗？我对Android很新，发现它。有点困难。