タイトル | : MapTel 問題発生 |
記事No | : 5560 |
投稿日 | : 2020/02/09(Sun) 13:21 |
投稿者 | : kasai |
アンドロイド基礎講習の「アクティビティのライフサイクル」で調査logを輩出するようにして、実行したところ、エミュレータ画面で"問題が発生したため、MapTel を終了します。"のメッセージが出ました。Logcat出力を以下に示します。よろしくお願いいたします。 " 02-09 01:24:58.930 4184-4184/? E/libprocessgroup: failed to make and chown /acct/uid_10060: Read-only file system 02-09 01:24:58.930 4184-4184/? W/Zygote: createProcessGroup failed, kernel missing CONFIG_CGROUP_CPUACCT? 02-09 01:24:58.930 4184-4184/? I/art: Not late-enabling -Xcheck:jni (already on) 02-09 01:24:58.993 4184-4184/? D/AndroidRuntime: Shutting down VM --------- beginning of crash 02-09 01:24:58.994 4184-4184/? E/AndroidRuntime: FATAL EXCEPTION: main Process: searchman.example.com, PID: 4184 java.lang.RuntimeException: Unable to instantiate activity ComponentInfo{searchman.example.com/searchman.example.com.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2209) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360) at android.app.ActivityThread.access$800(ActivityThread.java:144) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5221) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'android.content.res.Resources android.content.Context.getResources()' on a null object reference at android.content.ContextWrapper.getResources(ContextWrapper.java:85) at android.view.ContextThemeWrapper.getResources(ContextThemeWrapper.java:74) at androidx.appcompat.app.AppCompatActivity.getResources(AppCompatActivity.java:543) at searchman.example.com.MainActivity.<init>(MainActivity.java:16) at java.lang.reflect.Constructor.newInstance(Native Method) at java.lang.Class.newInstance(Class.java:1572) at android.app.Instrumentation.newActivity(Instrumentation.java:1065) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2199) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)  at android.app.ActivityThread.access$800(ActivityThread.java:144)  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)  at android.os.Handler.dispatchMessage(Handler.java:102)  at android.os.Looper.loop(Looper.java:135)  at android.app.ActivityThread.main(ActivityThread.java:5221)  at java.lang.reflect.Method.invoke(Native Method)  at java.lang.reflect.Method.invoke(Method.java:372)  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)  02-09 01:25:43.444 4184-4184/searchman.example.com I/Process: Sending signal. PID: 4184 SIG: 9 "
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