应用程序已停止工作，但日志不显示错误？

Question

我想测试一个应用程序页面，但它不断崩溃。然而，logcat不会显示错误，不像其他问题在*上。我不知道什么是错误的，如果有人能为我指出错误，我会非常感激。 我知道我在主程序中有未完成的代码，但我没有执行任何代码，所以我认为它没关系。

这里是日志文件

 ??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.230 2347: 2347 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<< 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.230 2347: 2347 W/linker ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): libdvm.so has text relocations. This is wasting memory and is a security risk. Please fix. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.270 2347: 2347 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): CheckJNI is ON 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.360 2347: 2347 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Trying to load lib libjavacore.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.370 2347: 2347 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Added shared lib libjavacore.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.400 2347: 2347 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Trying to load lib libnativehelper.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.400 2347: 2347 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Added shared lib libnativehelper.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.400 2347: 2347 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): No JNI_OnLoad found in libnativehelper.so 0x0, skipping init 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:49.670 2347: 2347 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Note: class Landroid/app/ActivityManagerNative; has 179 unimplemented (abstract) methods 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:50.400 2347: 2347 E/memtrack ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Couldn't load memtrack module (No such file or directory) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:50.400 2347: 2347 E/android.os.Debug ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): failed to load memtrack module: -2 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:50.740 2347: 2347 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Calling main entry com.android.commands.pm.Pm 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:50.790 2347: 2347 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Shutting down VM 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:50.800 2347: 2354 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Debugger has detached; object registry had 1 entries 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.550 2358: 2358 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): >>>>>> AndroidRuntime START com.android.internal.os.RuntimeInit <<<<<< 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.550 2358: 2358 W/linker ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): libdvm.so has text relocations. This is wasting memory and is a security risk. Please fix. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.600 2358: 2358 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): CheckJNI is ON 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.690 2358: 2358 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Trying to load lib libjavacore.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.690 2358: 2358 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Added shared lib libjavacore.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.720 2358: 2358 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Trying to load lib libnativehelper.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.720 2358: 2358 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Added shared lib libnativehelper.so 0x0 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.720 2358: 2358 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): No JNI_OnLoad found in libnativehelper.so 0x0, skipping init 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:51.990 2358: 2358 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Note: class Landroid/app/ActivityManagerNative; has 179 unimplemented (abstract) methods 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:52.640 2358: 2358 E/memtrack ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Couldn't load memtrack module (No such file or directory) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:52.640 2358: 2358 E/android.os.Debug ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): failed to load memtrack module: -2 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.180 2358: 2358 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Calling main entry com.android.commands.am.Am 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.300 1269: 1434 I/ActivityManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): START u0 {act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] flg=0x10000000 cmp=com.example.safety/.MainActivity} from pid 2358 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.480 923: 923 D/gralloc ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Registering a buffer in the process that created it. This may cause memory ordering problems. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/libEGL ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): called unimplemented OpenGL ES API 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/libEGL ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): called unimplemented OpenGL ES API 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/libEGL ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): called unimplemented OpenGL ES API 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/libEGL ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): called unimplemented OpenGL ES API 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/SurfaceFlinger ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): glCheckFramebufferStatusOES error -1043711944 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/SurfaceFlinger ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): got GL_FRAMEBUFFER_COMPLETE_OES error while taking screenshot 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/libEGL ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): called unimplemented OpenGL ES API 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.490 923: 923 E/libEGL ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): called unimplemented OpenGL ES API 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.530 1269: 1283 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 76 frames! The application may be doing too much work on its main thread. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.530 1269: 1434 W/WindowManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Screenshot failure taking screenshot for (164x246) to layer 21005 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.730 2358: 2358 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Shutting down VM 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.740 2358: 2365 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Debugger has detached; object registry had 1 entries 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.860 1269: 1315 I/ActivityManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Start proc com.example.safety for activity com.example.safety/.MainActivity: pid=2374 uid=10052 gids={50052} 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.880 1269: 1284 I/ActivityManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Killing 1472:com.android.music/u0a32 (adj 15): empty for 1808s 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.910 1269: 1284 I/ActivityManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Killing 1415:com.android.printspooler/u0a39 (adj 15): empty for 1809s 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:53.950 1269: 1431 W/MediaFocusControl ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): RemoteControlClient died 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:54.060 2374: 2374 D/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Not late-enabling CheckJNI (already on) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:54.400 1269: 1283 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 57 frames! The application may be doing too much work on its main thread. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:55.020 1269: 1283 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 314 frames! The application may be doing too much work on its main thread. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:55.570 1269: 1283 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 346 frames! The application may be doing too much work on its main thread. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:55.960 2374: 2374 D/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Shutting down VM 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:56.000 2374: 2374 W/dalvikvm ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): threadid=1: thread exiting with uncaught exception (group=0xb1d79b20) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:56.080 2374: 2374 E/AndroidRuntime ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): FATAL EXCEPTION: main 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Process: com.example.safety, PID: 2374 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.safety/com.example.safety.MainActivity}: android.view.InflateException: Binary XML file line #16: Error inflating class Layout 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2195) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2245) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.ActivityThread.access$800(ActivityThread.java:135) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1196) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.os.Handler.dispatchMessage(Handler.java:102) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.os.Looper.loop(Looper.java:136) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.ActivityThread.main(ActivityThread.java:5017) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at java.lang.reflect.Method.invokeNative(Native Method) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at java.lang.reflect.Method.invoke(Method.java:515) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:779) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:595) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at dalvik.system.NativeStart.main(Native Method) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Caused by: android.view.InflateException: Binary XML file line #16: Error inflating class Layout 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:707) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.rInflate(LayoutInflater.java:755) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.inflate(LayoutInflater.java:397) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.inflate(LayoutInflater.java:353) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at com.android.internal.policy.impl.PhoneWindow.setContentView(PhoneWindow.java:290) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.Activity.setContentView(Activity.java:1929) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.support.v7.app.ActionBarActivity.superSetContentView(ActionBarActivity.java:217) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.support.v7.app.ActionBarActivityDelegateICS.setContentView(ActionBarActivityDelegateICS.java:110) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.support.v7.app.ActionBarActivity.setContentView(ActionBarActivity.java:77) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at com.example.safety.MainActivity.onCreate(MainActivity.java:17) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.Activity.performCreate(Activity.java:5231) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2159) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  ... 11 more 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Caused by: java.lang.ClassNotFoundException: Didn't find class "android.view.Layout" on path: DexPathList[[zip file "/data/app/com.example.safety-2.apk"],nativeLibraryDirectories=[/data/app-lib/com.example.safety-2, /system/lib]] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at java.lang.ClassLoader.loadClass(ClassLoader.java:497) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at java.lang.ClassLoader.loadClass(ClassLoader.java:457) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.createView(LayoutInflater.java:559) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:652) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at com.android.internal.policy.impl.PhoneLayoutInflater.onCreateView(PhoneLayoutInflater.java:66) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.onCreateView(LayoutInflater.java:669) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:694) 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>):  ... 24 more 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:56.340 1269: 1570 W/ActivityManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Force finishing activity com.example.safety/.MainActivity 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:56.690 1269: 1570 I/WindowManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Screenshot max retries 4 of Token{b2388600 ActivityRecord{b22931f8 u0 com.example.safety/.MainActivity t10 f}} appWin=Window{b23ac578 u0 Starting com.example.safety} drawState=4 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:56.690 1269: 1570 W/WindowManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Screenshot failure taking screenshot for (320x480) to layer 21010 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:56.910 1269: 1284 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 68 frames! The application may be doing too much work on its main thread. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:57.150 1269: 1283 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 53 frames! The application may be doing too much work on its main thread. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:57.210 1269: 1284 W/ActivityManager ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Activity pause timeout for ActivityRecord{b22931f8 u0 com.example.safety/.MainActivity t10 f} 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:57.340 1269: 1283 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 100 frames! The application may be doing too much work on its main thread. 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): [ 10-02 22:09:57.540 1269: 1283 I/Choreographer ] 
??-?? ??:??:??.???: INFO/<unknown>(<unknown>): Skipped 127 frames! The application may be doing too much work on its main thread. 

我检查，看看是否包/活动名称是在我main.xml中相同的，它看起来像一样

package com.example.safety; 
import android.support.v7.app.ActionBarActivity; 
import android.content.Intent; 
import android.os.Bundle; 
import android.view.Menu; 
import android.view.MenuItem; 
import android.webkit.WebView; 
import android.widget.EditText; 


public class MainActivity extends ActionBarActivity { 

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


    @Override 
    public boolean onCreateOptionsMenu(Menu menu) { 
     // Inflate the menu; this adds items to the action bar if it is present. 
     getMenuInflater().inflate(R.menu.main, menu); 
     return true; 
    } 

    @Override 
    public boolean onOptionsItemSelected(MenuItem item) { 
     // Handle action bar item clicks here. The action bar will 
     // automatically handle clicks on the Home/Up button, so long 
     // as you specify a parent activity in AndroidManifest.xml. 
     EditText newDestination; 
     EditText newLocation; 
//  newDestination= (EditText) findViewById(R.id.newD); 
//  newLocation= (EditText) findViewById(R.id.newLoc); 


     int id = item.getItemId(); 
     if (id == R.id.action_settings) { 
      return true; 
     } 
     if (id==R.id.goBackButton) { 
      //go back to enter locatoin page 
     } 

     WebView myWebView = (WebView) findViewById(R.id.webView); 
     myWebView.loadUrl("http://developer.android.com/guide/webapps/webview.html"); 

     return super.onOptionsItemSelected(item); 
    } 
} 

也存在清单中的默认活动启动（并且我现在只有一项活动）

<?xml version="1.0" encoding="utf-8"?> 
<manifest xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="wrap_content" 
    android:layout_height="match_parent" 
    package="com.example.myfirstapp" 
    android:versionCode="1" 
    android:versionName="1.0" > 

    <uses-sdk 
     android:minSdkVersion="11" 
     android:targetSdkVersion="21" /> 

    <application 
     android:allowBackup="true" 
     android:icon="@drawable/ic_launcher" 
     android:label="@string/app_name" 
     android:theme="@style/Theme.AppCompat.Light" > 
     <activity 
      android:name=".MainActivity" 
      android:label="@string/app_name" > 
      <intent-filter> 
       <action android:name="android.intent.action.MAIN" /> 

       <category android:name="android.intent.category.LAUNCHER" /> 
      </intent-filter> 
     </activity> 
    </application> 
    <uses-permission android:name="android.permission.INTERNET" /> 
</manifest> 

这里是我的ac如果您需要看到这些信息，请点击这里。

<?xml version="1.0" encoding="utf-8"?> 
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:layout_width="match_parent" 
    android:layout_height="match_parent" > 

    <Button 
     android:id="@+id/goBackButton" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignParentLeft="true" 
     android:layout_alignParentTop="true" 
     android:layout_marginLeft="34dp" 
     android:layout_marginTop="23dp" 
     android:text="@string/returnToStart" /> 

    <Layout 
     android:id="@+id/layout1" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" /> 

    <TextView 
     android:id="@+id/estimatedTime" 
     android:layout_width="wrap_content" 
     android:layout_height="wrap_content" 
     android:layout_alignLeft="@+id/goBackButton" 
     android:layout_below="@+id/goBackButton" 
     android:layout_marginLeft="10dp" 
     android:layout_marginTop="23dp" 
     android:text="@string/chosenRouteTime" 
     android:textAppearance="?android:attr/textAppearanceLarge" /> 

    <ImageView 
     android:id="@+id/imageView1" 
     android:layout_width="wrap_content" 
     android:layout_height="300dp" 
     android:layout_alignLeft="@+id/goBackButton" 
     android:layout_alignRight="@+id/goBackButton" 
     android:layout_below="@+id/estimatedTime" 
     android:layout_marginTop="12dp" 
     android:contentDescription="@string/mapDescriptor" 
     android:scaleType="fitXY" 
     android:src="@drawable/map" /> 

    <WebView 
     android:id="@+id/webView" 
     android:layout_width="match_parent" 
     android:layout_height="match_parent" 
     android:layout_alignLeft="@+id/imageView1" 
     android:layout_alignRight="@+id/imageView1" 
     android:layout_below="@+id/imageView1" /> 

</RelativeLayout> 

Answer 1

Layout是不是在Android SDK中一个有效的标签，所以当它试图创建的XML文件中定义的接口你的应用程序崩溃。

尝试在其他的东西你的XML文件，无论是从该列表中相应的线16改变了Layout：http://developer.android.com/guide/topics/ui/declaring-layout.html#CommonLayouts

您可以通过继承ViewGroup，以及创建自己的，如果你想 - http://developer.android.com/reference/android/view/ViewGroup.html