我的應用程序崩潰！需要幫助..there似乎是一個錯誤的logcat的

Question

05-10 19:09:13.744 17071-17071/com.example.personal.enco E/AndroidRuntime: FATAL EXCEPTION: main 
    Process: com.example.personal.enco, PID: 17071 
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.personal.enco/com.example.personal.enco.MainActivity}: android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class android.support.constraint.RelativeLayout 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2426) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490) 
     at android.app.ActivityThread.-wrap11(ActivityThread.java) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:148) 
     at android.app.ActivityThread.main(ActivityThread.java:5443) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
     Caused by: android.view.InflateException: Binary XML file line #2: Binary XML file line #2: Error inflating class android.support.constraint.RelativeLayout 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:539) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
     at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:288) 
     at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
     at com.example.personal.enco.MainActivity.onCreate(MainActivity.java:12) 
     at android.app.Activity.performCreate(Activity.java:6259) 
     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1130) 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490) 
     at android.app.ActivityThread.-wrap11(ActivityThread.java) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:148) 
     at android.app.ActivityThread.main(ActivityThread.java:5443) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
     Caused by: android.view.InflateException: Binary XML file line #2: Error inflating class android.support.constraint.RelativeLayout 
     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:776) 
     at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:492) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:423) 
     at android.view.LayoutInflater.inflate(LayoutInflater.java:374) 
     at android.support.v7.app.AppCompatDelegateImplV9.setContentView(AppCompatDelegateImplV9.java:288) 
     at android.support.v7.app.AppCompatActivity.setContentView(AppCompatActivity.java:140) 
     at com.example.personal.enco.MainActivity.onCreate(MainActivity.java:12) 
     at android.app.Activity.performCreate(Activity.java:6259) 
     at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1130) 
     at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2379) 
     at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2490) 
     at android.app.ActivityThread.-wrap11(ActivityThread.java) 
     at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1354) 
     at android.os.Handler.dispatchMessage(Handler.java:102) 
     at android.os.Looper.loop(Looper.java:148) 
     at android.app.ActivityThread.main(ActivityThread.java:5443) 
     at java.lang.reflect.Method.invoke(Native Method) 
     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:728) 
     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618) 
     Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.constraint.RelativeLayout" on path: DexPathList[[zip file "/data/app/com.example.personal.enco-1/base.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.personal.enco-1/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.example.personal.enco-1/lib/arm, /data/app/com.example.personal.enco-1/base.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_dependencies_apk.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_slice_0_apk.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_slice_1_apk.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_slice_2_apk.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_slice_3_apk.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_slice_4_apk.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_slice_5_apk.apk!/lib/armeabi-v7a, /data/app/com.example.personal.enco-1/split_lib_slice_6_apk.apk!/lib/armeabi-v7a, /data/app/com.example.person 

Answer 1

android.view.InflateException: Binary XML file line #2: Error inflating class android.support.constraint.RelativeLayout 

你有，你有一個名爲android.support.constraint.RelativeLayout的XML元素的佈局資源。 Android中沒有這樣的類。 RelativeLayout可以在您的佈局中簡稱爲RelativeLayout。

Answer 2

可以發佈哪個API來開發應用程序嗎？ 你有沒有做過任何更新？檢查你的SDK包，

否則

創建一個activity2.xml一個線性佈局或相對佈局，並在烏拉圭回合的setContentView拆卸舊activity1.xml申請您的活動，並運行應用程序..

試試這個