不幸Project_Name已停止

我有一个简单的应用程序，您可以在textview中输入文本，然后按提交并显示另一个活动中的文本。然而，当我按下提交，给我的消息“不幸发送已停止”我看了SO上的其他线程，但Unfortunately myfirstproject stopped working error in java似乎是最接近的，他们说检查LogCat文件，并且它出现了多个错误：不幸Project_Name已停止

07-11 19:38:01.925: E/Trace(729): error opening trace file: No such file or directory (2) 
07-11 19:38:05.815: I/Choreographer(729): Skipped 451 frames! The application may be doing too much work on its main thread. 
07-11 19:38:06.009: D/gralloc_goldfish(729): Emulator without GPU emulation detected. 
07-11 19:38:35.046: I/Choreographer(729): Skipped 45 frames! The application may be doing too much work on its main thread. 
07-11 19:38:41.427: D/AndroidRuntime(729): Shutting down VM 
07-11 19:38:41.435: W/dalvikvm(729): threadid=1: thread exiting with uncaught exception (group=0x40a13300) 
07-11 19:38:41.585: E/AndroidRuntime(729): FATAL EXCEPTION: main 
07-11 19:38:41.585: E/AndroidRuntime(729): java.lang.IllegalStateException: Could not execute method of the activity 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View$1.onClick(View.java:3591) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View.performClick(View.java:4084) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View$PerformClick.run(View.java:16966) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.os.Handler.handleCallback(Handler.java:615) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.os.Handler.dispatchMessage(Handler.java:92) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.os.Looper.loop(Looper.java:137) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.ActivityThread.main(ActivityThread.java:4745) 
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invokeNative(Native Method) 
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invoke(Method.java:511) 
07-11 19:38:41.585: E/AndroidRuntime(729): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:786) 
07-11 19:38:41.585: E/AndroidRuntime(729): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:553) 
07-11 19:38:41.585: E/AndroidRuntime(729): at dalvik.system.NativeStart.main(Native Method) 
07-11 19:38:41.585: E/AndroidRuntime(729): Caused by: java.lang.reflect.InvocationTargetException 
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invokeNative(Native Method) 
07-11 19:38:41.585: E/AndroidRuntime(729): at java.lang.reflect.Method.invoke(Method.java:511) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.view.View$1.onClick(View.java:3586) 
07-11 19:38:41.585: E/AndroidRuntime(729): ... 11 more 
07-11 19:38:41.585: E/AndroidRuntime(729): Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.point/com.point.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml? 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Instrumentation.checkStartActivityResult(Instrumentation.java:1541) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Instrumentation.execStartActivity(Instrumentation.java:1416) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivityForResult(Activity.java:3351) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivityForResult(Activity.java:3312) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivity(Activity.java:3522) 
07-11 19:38:41.585: E/AndroidRuntime(729): at android.app.Activity.startActivity(Activity.java:3490) 
07-11 19:38:41.585: E/AndroidRuntime(729): at com.point.MainActivity.sendMessage(MainActivity.java:34) 
07-11 19:38:41.585: E/AndroidRuntime(729): ... 14 more 
07-11 19:43:41.995: I/Process(729): Sending signal. PID: 729 SIG: 9

SO上的链接还提到了一些关于不创建TextView和NULL的链接。

有人可以帮助我吗？

来源

2012-07-11 Chris Okyen

如果你把在误差更好看日志，你会看到：

Caused by: android.content.ActivityNotFoundException: Unable to find explicit activity class {com.point/com.point.DisplayMessageActivity}; have you declared this activity in your AndroidManifest.xml?

因此，在宣布你DisplayMessageActivityAndroidManifest.xml文件？

来源

2012-07-11 20:45:07

我如何当场指出，这是所有的错误项问题？ – 2012-07-11 21:05:01

第一个会导致所有其他错误，正如你所看到的，首先抛出ActivityNotFoundException，然后抛出InvocationTargetException错误，因为它试图调用一个不存在的Activity，等等...... – 2012-07-11 21:08:36

这是一个堆栈跟踪，所以在“堆栈”这个词的背景下思考，从底部开始，找到第一个例外。在这种情况下，它会为您解决问题，但如果没有，那么从第一个异常开始，向下看第一行引用您的代码文件（例如com.point.MainActivity）的第一行并查看它在什么路线上引用（MainActivity.java:34）。您的错误将从该行代码中抛出。 – kcoppock 2012-07-11 21:10:27

从您的堆栈跟踪：

Unable to find explicit activity class {com.point/com.point.DisplayMessageActivity}; 
have you declared this activity in your AndroidManifest.xml?

Have you?

来源

2012-07-11 20:44:24 kcoppock

给你的清单文件下添加应用标签：

<activity android:name=".DisplayMessageActivity"></activity>

来源

2012-07-11 20:46:55

FacePalm我必须做些什么，因为我花了一段时间修复昨天... – 2012-07-11 21:04:10

不幸Project_Name已停止

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