Persistent unexplained logs

[ChanghyeonYoon]

Describe the bug

W/Datadog ( 3009): [_dd.sdk_core.default]: A RUM event was detected, but no view is active. To track views automatically, try calling the RumConfiguration.Builder.useViewTrackingStrategy() method.
W/Datadog ( 3009): You can also track views manually using the RumMonitor.startView() and RumMonitor.stopView() methods.

Reproduction steps

final originalOnError = FlutterError.onError;
  FlutterError.onError = (details) {
    DatadogSdk.instance.rum?.handleFlutterError(details);
    originalOnError?.call(details);
  };
  final platformOriginalOnError = PlatformDispatcher.instance.onError;
  PlatformDispatcher.instance.onError = (e, st) {
    DatadogSdk.instance.rum?.addErrorInfo(
      e.toString(),
      RumErrorSource.source,
      stackTrace: st,
    );
    return platformOriginalOnError?.call(e, st) ?? false;
  };

  final configuration = DatadogConfiguration(
    clientToken: datadogClientToken,
    env: Config.instance.env,
    site: DatadogSite.us1,
    nativeCrashReportEnabled: true,
    loggingConfiguration: DatadogLoggingConfiguration(),
    rumConfiguration: DatadogRumConfiguration(
      applicationId: datadogApplicationId,
      sessionSamplingRate: 100.0,
      reportFlutterPerformance: true,
    ),
    firstPartyHosts: ['domain.com'],
  )..enableHttpTracking();

await DatadogSdk.runApp(configuration, TrackingConsent.granted, () async {
    runApp(
      GetMaterialApp.router(
        builder: (context, child) {
          return MediaQuery(
            data: MediaQuery.of(context).copyWith(
              textScaler: const TextScaler.linear(1.0),
            ),
            child: Overlay(
              initialEntries: [
                if (child != null) ...[
                  OverlayEntry(
                    builder: (context) => RumUserActionDetector(
                      rum: DatadogSdk.instance.rum,
                      child: child,
                    ),
                  ),
                ],
              ],
            ),
          );
        },
        theme: ThemeData(
          useMaterial3: true,
          colorSchemeSeed: TWColor.lightBlue500,
        ),
        title: "myApp",
        themeMode: ThemeMode.light,
        routeInformationParser: AppPages.router.routeInformationParser,
        routeInformationProvider: AppPages.router.routeInformationProvider,
        routerDelegate: AppPages.router.routerDelegate,
        debugShowCheckedModeBanner: false,
        localizationsDelegates: const [
          GlobalMaterialLocalizations.delegate,
          GlobalWidgetsLocalizations.delegate,
          GlobalCupertinoLocalizations.delegate,
        ],
        supportedLocales: const [
          Locale('ko', 'KR'),
        ],
        locale: const Locale('ko'),
      ),
    );
  });

I don't know why, but I keep getting the above log periodically.

SDK logs

No response

Expected behavior

No response

Affected SDK versions

2.3.0

Latest working SDK version

No response

Did you confirm if the latest SDK version fixes the bug?

Yes

Flutter Version

3.22.0

Setup Type

No response

Device Information

No response

Other relevant information

No response

[fuzzybinary]

Hi @ChanghyeonYoon ,

This occurs when we're trying to report RUM events with no active view, though the error is coming from the Android native SDK (hence the reference to functions that don't exist in the Flutter SDK).

One major culprit of this warning I realized recently is reportFlutterPerformance, which attempts to report performance metrics even when no view is active, which can get noisy on Android.

However, the best way to avoid it is to try to make sure you always have an active view, usually by having your Router call startView / stopView whenever your view changes.