現在Flutterの環境構築をしているのですが、USB接続したスマホ（SCL22）でデフォルトのプロジェクトを起動しようとすると、以下のようなエラーが起こります。

```

    E/AndroidRuntime(17871): java.lang.RuntimeException: Unable to start activity ComponentInfo{lamrongol.date_interval_logger/lamrongol.date_interval_logger.MainActivity}: android.content.res.Resources$NotFoundException: File res/drawable-v21/launch_background.xml from drawable resource ID #0x7f040000
    E/AndroidRuntime(17871):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2693)
    E/AndroidRuntime(17871):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
    E/AndroidRuntime(17871):    at android.app.ActivityThread.access$900(ActivityThread.java:177)
    E/AndroidRuntime(17871):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
    E/AndroidRuntime(17871):    at android.os.Handler.dispatchMessage(Handler.java:102)
    E/AndroidRuntime(17871):    at android.os.Looper.loop(Looper.java:145)
    E/AndroidRuntime(17871):    at android.app.ActivityThread.main(ActivityThread.java:5942)
    E/AndroidRuntime(17871):    at java.lang.reflect.Method.invoke(Native Method)
    E/AndroidRuntime(17871):    at java.lang.reflect.Method.invoke(Method.java:372)
    E/AndroidRuntime(17871):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
    E/AndroidRuntime(17871):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
    E/AndroidRuntime(17871): Caused by: android.content.res.Resources$NotFoundException: File res/drawable-v21/launch_background.xml from drawable resource ID #0x7f040000
    E/AndroidRuntime(17871):    at android.content.res.Resources.loadDrawableForCookie(Resources.java:3752)
    E/AndroidRuntime(17871):    at android.content.res.Resources.loadDrawable(Resources.java:3620)
    E/AndroidRuntime(17871):    at android.content.res.Resources.getDrawable(Resources.java:1852)
    E/AndroidRuntime(17871):    at android.content.res.Resources.getDrawable(Resources.java:1818)
    E/AndroidRuntime(17871):    at io.flutter.embedding.android.FlutterActivity.getSplashScreenFromManifest(FlutterActivity.java:493)
    E/AndroidRuntime(17871):    at io.flutter.embedding.android.FlutterActivity.provideSplashScreen(FlutterActivity.java:469)
    E/AndroidRuntime(17871):    at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onCreateView(FlutterActivityAndFragmentDelegate.java:301)
    E/AndroidRuntime(17871):    at io.flutter.embedding.android.FlutterActivity.createFlutterView(FlutterActivity.java:518)
    E/AndroidRuntime(17871):    at io.flutter.embedding.android.FlutterActivity.onCreate(FlutterActivity.java:415)
    E/AndroidRuntime(17871):    at android.app.Activity.performCreate(Activity.java:6288)
    E/AndroidRuntime(17871):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
    E/AndroidRuntime(17871):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
    E/AndroidRuntime(17871):    ... 10 more
    E/AndroidRuntime(17871): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #4: <item> tag requires a 'drawable' attribute or child tag defining a drawable
    E/AndroidRuntime(17871):    at android.graphics.drawable.LayerDrawable.inflateLayers(LayerDrawable.java:202)
    E/AndroidRuntime(17871):    at android.graphics.drawable.LayerDrawable.inflate(LayerDrawable.java:147)
    E/AndroidRuntime(17871):    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1150)
    E/AndroidRuntime(17871):    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:1063)
    E/AndroidRuntime(17871):    at android.content.res.Resources.loadDrawableForCookie(Resources.java:3736)
    E/AndroidRuntime(17871):    ... 21 more
    E/AndroidRuntime(19382): FATAL EXCEPTION: main
    E/AndroidRuntime(19382): Process: lamrongol.date_interval_logger, PID: 19382
    E/AndroidRuntime(19382): java.lang.RuntimeException: Unable to start activity ComponentInfo{lamrongol.date_interval_logger/lamrongol.date_interval_logger.MainActivity}: android.content.res.Resources$NotFoundException: File res/drawable-v21/launch_background.xml from drawable resource ID #0x7f040000
    E/AndroidRuntime(19382):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2693)
    E/AndroidRuntime(19382):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
    E/AndroidRuntime(19382):    at android.app.ActivityThread.access$900(ActivityThread.java:177)
    E/AndroidRuntime(19382):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
    E/AndroidRuntime(19382):    at android.os.Handler.dispatchMessage(Handler.java:102)
    E/AndroidRuntime(19382):    at android.os.Looper.loop(Looper.java:145)
    E/AndroidRuntime(19382):    at android.app.ActivityThread.main(ActivityThread.java:5942)
    E/AndroidRuntime(19382):    at java.lang.reflect.Method.invoke(Native Method)
    E/AndroidRuntime(19382):    at java.lang.reflect.Method.invoke(Method.java:372)
    E/AndroidRuntime(19382):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
    E/AndroidRuntime(19382):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
    E/AndroidRuntime(19382): Caused by: android.content.res.Resources$NotFoundException: File res/drawable-v21/launch_background.xml from drawable resource ID #0x7f040000
    E/AndroidRuntime(19382):    at android.content.res.Resources.loadDrawableForCookie(Resources.java:3752)
    E/AndroidRuntime(19382):    at android.content.res.Resources.loadDrawable(Resources.java:3620)
    E/AndroidRuntime(19382):    at android.content.res.Resources.getDrawable(Resources.java:1852)
    E/AndroidRuntime(19382):    at android.content.res.Resources.getDrawable(Resources.java:1818)
    E/AndroidRuntime(19382):    at io.flutter.embedding.android.FlutterActivity.getSplashScreenFromManifest(FlutterActivity.java:493)
    E/AndroidRuntime(19382):    at io.flutter.embedding.android.FlutterActivity.provideSplashScreen(FlutterActivity.java:469)
    E/AndroidRuntime(19382):    at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onCreateView(FlutterActivityAndFragmentDelegate.java:301)
    E/AndroidRuntime(19382):    at io.flutter.embedding.android.FlutterActivity.createFlutterView(FlutterActivity.java:518)
    E/AndroidRuntime(19382):    at io.flutter.embedding.android.FlutterActivity.onCreate(FlutterActivity.java:415)
    E/AndroidRuntime(19382):    at android.app.Activity.performCreate(Activity.java:6288)
    E/AndroidRuntime(19382):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
    E/AndroidRuntime(19382):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
    E/AndroidRuntime(19382):    ... 10 more
    E/AndroidRuntime(19382): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #4: <item> tag requires a 'drawable' attribute or child tag defining a drawable
    E/AndroidRuntime(19382):    at android.graphics.drawable.LayerDrawable.inflateLayers(LayerDrawable.java:202)
    E/AndroidRuntime(19382):    at android.graphics.drawable.LayerDrawable.inflate(LayerDrawable.java:147)
    E/AndroidRuntime(19382):    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1150)
    E/AndroidRuntime(19382):    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:1063)
    E/AndroidRuntime(19382):    at android.content.res.Resources.loadDrawableForCookie(Resources.java:3736)
    E/AndroidRuntime(19382):    ... 21 more
    √ Built build\app\outputs\flutter-apk\app-debug.apk.
    E/AndroidRuntime(19610): FATAL EXCEPTION: main
    E/AndroidRuntime(19610): Process: lamrongol.date_interval_logger, PID: 19610
    E/AndroidRuntime(19610): java.lang.RuntimeException: Unable to start activity ComponentInfo{lamrongol.date_interval_logger/lamrongol.date_interval_logger.MainActivity}: android.content.res.Resources$NotFoundException: File res/drawable-v21/launch_background.xml from drawable resource ID #0x7f040000
    E/AndroidRuntime(19610):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2693)
    E/AndroidRuntime(19610):    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2758)
    E/AndroidRuntime(19610):    at android.app.ActivityThread.access$900(ActivityThread.java:177)
    E/AndroidRuntime(19610):    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1448)
    E/AndroidRuntime(19610):    at android.os.Handler.dispatchMessage(Handler.java:102)
    E/AndroidRuntime(19610):    at android.os.Looper.loop(Looper.java:145)
    E/AndroidRuntime(19610):    at android.app.ActivityThread.main(ActivityThread.java:5942)
    E/AndroidRuntime(19610):    at java.lang.reflect.Method.invoke(Native Method)
    E/AndroidRuntime(19610):    at java.lang.reflect.Method.invoke(Method.java:372)
    E/AndroidRuntime(19610):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1399)
    E/AndroidRuntime(19610):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1194)
    E/AndroidRuntime(19610): Caused by: android.content.res.Resources$NotFoundException: File res/drawable-v21/launch_background.xml from drawable resource ID #0x7f040000
    E/AndroidRuntime(19610):    at android.content.res.Resources.loadDrawableForCookie(Resources.java:3752)
    E/AndroidRuntime(19610):    at android.content.res.Resources.loadDrawable(Resources.java:3620)
    E/AndroidRuntime(19610):    at android.content.res.Resources.getDrawable(Resources.java:1852)
    E/AndroidRuntime(19610):    at android.content.res.Resources.getDrawable(Resources.java:1818)
    E/AndroidRuntime(19610):    at io.flutter.embedding.android.FlutterActivity.getSplashScreenFromManifest(FlutterActivity.java:493)
    E/AndroidRuntime(19610):    at io.flutter.embedding.android.FlutterActivity.provideSplashScreen(FlutterActivity.java:469)
    E/AndroidRuntime(19610):    at io.flutter.embedding.android.FlutterActivityAndFragmentDelegate.onCreateView(FlutterActivityAndFragmentDelegate.java:301)
    E/AndroidRuntime(19610):    at io.flutter.embedding.android.FlutterActivity.createFlutterView(FlutterActivity.java:518)
    E/AndroidRuntime(19610):    at io.flutter.embedding.android.FlutterActivity.onCreate(FlutterActivity.java:415)
    E/AndroidRuntime(19610):    at android.app.Activity.performCreate(Activity.java:6288)
    E/AndroidRuntime(19610):    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1119)
    E/AndroidRuntime(19610):    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2646)
    E/AndroidRuntime(19610):    ... 10 more
    E/AndroidRuntime(19610): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #4: <item> tag requires a 'drawable' attribute or child tag defining a drawable
    E/AndroidRuntime(19610):    at android.graphics.drawable.LayerDrawable.inflateLayers(LayerDrawable.java:202)
    E/AndroidRuntime(19610):    at android.graphics.drawable.LayerDrawable.inflate(LayerDrawable.java:147)
    E/AndroidRuntime(19610):    at android.graphics.drawable.Drawable.createFromXmlInner(Drawable.java:1150)
    E/AndroidRuntime(19610):    at android.graphics.drawable.Drawable.createFromXml(Drawable.java:1063)
    E/AndroidRuntime(19610):    at android.content.res.Resources.loadDrawableForCookie(Resources.java:3736)
    E/AndroidRuntime(19610):    ... 21 more
    
```

対象デバイスをChrome(web)にすると正常に起動します。  
なお、Android Emulatorで作ったデバイスはなぜか候補に表示されません。  
参考にしたページはこちらです。 <https://flutter.dev/docs/get-started/test-drive>
CC BY-SA 4.0
2021-02-05T01:31:39.213
73807
2021-02-06T22:58:29.890
816
question
android android-studio flutter
FlutterでAndroid Studioからスマホで起動するとorg.xmlpull.v1.XmlPullParserExceptionというエラーが起こる