[Bug]: Map initialization error

[rajeshbdabhi]

Is there an existing issue for this?

• I have searched the existing issues

Description of the bug

PlatformException: PlatformException(viewNotFound, GoogleMapsNavigationViewHandlerError, Stacktrace: ["0 Runner 0x00000001056e6da8 _ZN11GMSx_proto25Arena13CopyConstructIN22GMSx_maps_gmm_geometry18RoutePositionProtoEEEPvPS0_PKv + 175884", "1 Runner 0x00000001056fcc6c _ZN11GMSx_proto25Arena13CopyConstructIN22GMSx_maps_gmm_geometry18RoutePositionProtoEEEPvPS0_PKv + 265680", "2 Runner 0x00000001056f59a4 _ZN11GMSx_proto25Arena13CopyConstructIN22GMSx_maps_gmm_geometry18RoutePositionProtoEEEPvPS0_PKv + 236296", "3 Flutter 0x00000001081d6eb8 InternalFlutterGpu_Texture_AsImage + 34832", "4 Flutter 0x0000000107c5bb1c Flutter + 441116", "5 libdispatch.dylib 0x00000001a1f4dabc 25BD2FB8-CD70-3483-90E5-474788FDDD72 + 6844", "6 libdispatch.dylib 0x00000001a1f677cc 25BD2FB8-CD70-3483-90E5-474788FDDD72 + 112588", "7 libdispatch.dylib 0x00000001a1f84af0 25BD2FB8-CD70-3483-90E5-474788FDDD72 + 232176", "8 libdispatch.dylib 0x00000001a1f5cea8 25BD2FB8-CD70-3483-90E5-474788FDDD72 + 69288", "9 libdispatch.dylib 0x00000001a1f5cde4 _dispatch_main_queue_callback_4CF + 44", "10 CoreFoundation 0x000000019975d5a0 44CF748C-19F2-31C4-A0F1-143E32768AF1 + 439712", "11 CoreFoundation 0x000000019970fdf0 44CF748C-19F2-31C4-A0F1-143E32768AF1 + 122352", "12 CoreFoundation 0x000000019970ed28 44CF748C-19F2-31C4-A0F1-143E32768AF1 + 118056", "13 GraphicsServices 0x00000001ead15498 GSEventRunModal + 120", "14 UIKitCore 0x000000019c48c838 ABE178BE-C241-3474-A192-70F042F71BF4 + 723000", "15 UIKitCore 0x000000019c42afd0 UIApplicationMain + 336", "16 UIKitCore 0x000000019c57193c ABE178BE-C241-3474-A192-70F042F71BF4 + 1661244", "17 Runner 0x0000000104ab2260 Runner + 25184", "18 dyld 0x000000019696db18 4E9F3B1E-8F53-3E3B-849C-950CA957C64B + 19224"], null)

Flutter version

3.29.2

Package version

0.6.3

Native SDK versions

• I haven't changed the version of the native SDKs

Flutter Doctor Output

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.29.2, on macOS 15.5 24F74 darwin-arm64, locale en-US)
[!] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses
[!] Xcode - develop for iOS and macOS (Xcode 16.4)
! CocoaPods 1.15.0 out of date (1.16.2 is recommended).
CocoaPods is a package manager for iOS or macOS platform code.
Without CocoaPods, plugins will not work on iOS or macOS.
For more info, see https://flutter.dev/to/platform-plugins
To update CocoaPods, see https://guides.cocoapods.org/using/getting-started.html#updating-cocoapods
[✓] Chrome - develop for the web
[✓] Android Studio (version 2024.3)
[✓] VS Code (version 1.103.2)
[✓] Connected device (6 available)
[✓] Network resources

! Doctor found issues in 2 categories.

Steps to reproduce

this issue comes sometime when map screen load

Expected vs Actual Behavior

map should load without any platform error

Code Sample

// Example code here

Additional Context

No response

[jokerttu]

@rajeshbdabhi
Thank you for reporting this issue!

[jalal-bradost]

The google map initialization error happening by one of the three reasons:

1- "notAuthorized": which means your token is wrong or you didn't configured your billing account. simply misconfigured google console navigation sdk.

2- "locationPermissionMissing": which means you didn't added the required location permission. I suggest using the geolocator package instead of using permission_handler which usually causes this error.

3- "termsNotAccepted": you must add confirmation for terms and conditions.

This is the sample code for resolve this issue:

Future<void> _initializeApp() async {
    // First, request permissions
    await _requestPermissions();

    // Then, handle terms and conditions
    if (!await GoogleMapsNavigator.areTermsAccepted()) {
      await GoogleMapsNavigator.showTermsAndConditionsDialog(
        "MPIT - Journery",
        "MPIT",
      );
    }

    // After permissions are granted and terms accepted, initialize the session
    await GoogleMapsNavigator.initializeNavigationSession();
  }

take a look at initializeNavigationSession and you can see it will throw the three above errors.

and now let's take a look at _requestPermissions():

Future<void> _requestPermissions() async {
    // Request location permissions
    bool isServiceEnabled;
    LocationPermission locationPermission;

    isServiceEnabled = await Geolocator.isLocationServiceEnabled();
    if (!isServiceEnabled) {
      throw PlatformException(
        code: 'DISABLED_SERVICE',
        message: 'Location services are disabled',
      );
    }

    locationPermission = await Geolocator.checkPermission();
    if (locationPermission == LocationPermission.denied) {
      locationPermission = await Geolocator.requestPermission();
      if (locationPermission == LocationPermission.denied) {
        throw PlatformException(
          code: 'PERMISSION_DENIED',
          message: 'Location permissions are denied',
        );
      }
    }

    if (locationPermission == LocationPermission.deniedForever) {
      throw PlatformException(
        code: 'PERMISSION_DENIED_FOREVER',
        message: 'Location permissions are permanently denied',
      );
    }
  }

make sure that you are added the location permissions in android and ios. and also the key.

[illuminati1911]

@rajeshbdabhi Do you still get this issue? If you do, can you give some example code regarding how you run into this issue. More specifically how you initialize the view on the Flutter app and do you call some view function before and/or after creating the view.

The error you are getting "viewNotFound" usually happens when view function is called on a view that does not exist anymore. Was the map view visible when you got this error?

[illuminati1911]

Closing this issue due to inactivity and because we’re unable to reproduce or verify it. If you’re still experiencing the issue, please re-open or file a new one with updated details.

[Trinistar]

Requesting to reopen this issue. I still have the same problem and even on the example app, the problem occurs. @illuminati1911

There is always the same behaviour, every second reload it works. I don't get it.

flutter doctor
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.35.6, on macOS 26.0.1 25A362 darwin-arm64, locale en-DE)
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 26.0)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2024.2)
[✓] VS Code (version 1.105.1)
[✓] Connected device (5 available)
[✓] Network resources

• No issues found!

Edit: I'm on package version 0.6.5

[Trinistar]

@jalal-bradost can you confirm, that using the geolocator instead of using permission_handler is working 100% of the time?

[Trinistar]

Using iOS Simulator 26.0
Ok I used the turnbyturn page widget. First time the app loads, everything works fine, after restart mylocation can't be enabled.
After second restart it works again and so on.
It seems if I have a try where it doesn't work, the GoogleNavigationViewController doesn't get initialized through the oncreated callback.

Future<void> _onViewCreated(
    final GoogleNavigationViewController controller,
  ) async {
    _navigationViewController = controller;

On a try, where it doesn't work, i created a button, to retry enabling the location, but then running into the catch block with the following error:

flutter: Location enabling failed LateInitializationError: Field '_navigationViewController@598385042' has not been initialized.
[ERROR:flutter/runtime/dart_vm_initializer.cc(40)] Unhandled Exception: LateInitializationError: Field '_navigationViewController@598385042' has not been initialized.

try {
      _navigationViewController.setMyLocationEnabled(true);
    } catch (e) {
      print('Location enabling failed $e');
    }

[Trinistar]

Probably related to
#451