當應用啓動並關閉時,我得到一個java.lang.NullPointerException權限。模擬器的錯誤是「不幸的是,appname已停止」。它工作正常,直到我寫了一堆新代碼,並更改了清單。希望這不是表現,但我的問題是,我怎麼能找出哪一行代碼是問題?跟蹤轉儲對我來說沒有任何意義,即使它很冗長,有...更多不會讓我看到整個事情。如何獲取拋出錯誤的特定代碼行
我真的不知道錯誤的含義。我已經搜索過它,但似乎有一個可能意味着的事情清單。我已經嘗試了Project> Clean,我試着再次弄清楚清單,但是我仍然得到錯誤。我已選中/取消選中外部庫。剛剛完成了人們建議要爲其他人獲得相同錯誤做的事情。所以我真的很想知道,什麼生產線設置了它?
這裏是輸出,如果這有助於:
06-29 08:37:23.680: E/AndroidRuntime(1225): FATAL EXCEPTION: main
06-29 08:37:23.680: E/AndroidRuntime(1225): java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{com.upliftly.android/com.upliftly.android.UpliftlyActivity}: java.lang.NullPointerException
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1879)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:1980)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.app.ActivityThread.access$600(ActivityThread.java:122)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1146)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.os.Handler.dispatchMessage(Handler.java:99)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.os.Looper.loop(Looper.java:137)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.app.ActivityThread.main(ActivityThread.java:4340)
06-29 08:37:23.680: E/AndroidRuntime(1225): at java.lang.reflect.Method.invokeNative(Native Method)
06-29 08:37:23.680: E/AndroidRuntime(1225): at java.lang.reflect.Method.invoke(Method.java:511)
06-29 08:37:23.680: E/AndroidRuntime(1225): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
06-29 08:37:23.680: E/AndroidRuntime(1225): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:551)
06-29 08:37:23.680: E/AndroidRuntime(1225): at dalvik.system.NativeStart.main(Native Method)
06-29 08:37:23.680: E/AndroidRuntime(1225): Caused by: java.lang.NullPointerException
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.content.ContextWrapper.getApplicationContext(ContextWrapper.java:101)
06-29 08:37:23.680: E/AndroidRuntime(1225): at com.upliftly.android.UpliftlyActivity.<init>(UpliftlyActivity.java:19)
06-29 08:37:23.680: E/AndroidRuntime(1225): at java.lang.Class.newInstanceImpl(Native Method)
06-29 08:37:23.680: E/AndroidRuntime(1225): at java.lang.Class.newInstance(Class.java:1319)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.app.Instrumentation.newActivity(Instrumentation.java:1023)
06-29 08:37:23.680: E/AndroidRuntime(1225): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:1870)
06-29 08:37:23.680: E/AndroidRuntime(1225): ... 11 more
你可以發佈你的清單? –