[firebase_messaging]: Unable to resolve host "firestore.googleapis.com": No address associated with hostname

[realtebo]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Messaging

Which platforms are affected?

Android

Description

Very often, when app is in background, in the debug console i see something like that

W/Firestore( 3149): (25.1.2) [WatchStream]: (d68efe8) Stream closed with status: Status{code=UNAVAILABLE, description=Unable to resolve host firestore.googleapis.com, cause=java.lang.RuntimeException: java.net.UnknownHostException: Unable to resolve host "firestore.googleapis.com": No address associated with hostname
W/Firestore( 3149): 	at io.grpc.internal.DnsNameResolver.resolveAddresses(DnsNameResolver.java:223)
W/Firestore( 3149): 	at io.grpc.internal.DnsNameResolver.doResolve(DnsNameResolver.java:282)
W/Firestore( 3149): 	at io.grpc.internal.DnsNameResolver$Resolve.run(DnsNameResolver.java:318)
W/Firestore( 3149): 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
W/Firestore( 3149): 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
W/Firestore( 3149): 	at java.lang.Thread.run(Thread.java:1012)

the problem is that app is no more receiveing FCM messages sent to a topic that app has subscribed to

Reproducing the issue

Enabling firebase messaging in a flutter app
Subscribe to a topic
Send app in background

100% of time when app is in the background, this bug happens and no notification can me received from FCM

Firebase Core version

3.12.0

Flutter Version

3.29.0

Relevant Log Output

W/ManagedChannelImpl( 3149): [{0}] Failed to resolve name. status={1}
W/Firestore( 3149): (25.1.2) [WatchStream]: (d68efe8) Stream closed with status: Status{code=UNAVAILABLE, description=Unable to resolve host firestore.googleapis.com, cause=java.lang.RuntimeException: java.net.UnknownHostException: Unable to resolve host "firestore.googleapis.com": No address associated with hostname
W/Firestore( 3149): 	at io.grpc.internal.DnsNameResolver.resolveAddresses(DnsNameResolver.java:223)
W/Firestore( 3149): 	at io.grpc.internal.DnsNameResolver.doResolve(DnsNameResolver.java:282)
W/Firestore( 3149): 	at io.grpc.internal.DnsNameResolver$Resolve.run(DnsNameResolver.java:318)
W/Firestore( 3149): 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
W/Firestore( 3149): 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
W/Firestore( 3149): 	at java.lang.Thread.run(Thread.java:1012)
W/Firestore( 3149): Caused by: java.net.UnknownHostException: Unable to resolve host "firestore.googleapis.com": No address associated with hostname
W/Firestore( 3149): 	at java.net.Inet6AddressImpl.lookupHostByName(Inet6AddressImpl.java:156)

Flutter dependencies

Expand Flutter dependencies snippet

Dart SDK 3.7.0
Flutter SDK 3.29.0
chat_app 1.0.0+1

dependencies:
- cloud_firestore 5.6.4 [cloud_firestore_platform_interface cloud_firestore_web collection firebase_core firebase_core_platform_interface flutter meta]
- cupertino_icons 1.0.8
- firebase_auth 5.5.0 [firebase_auth_platform_interface firebase_auth_web firebase_core firebase_core_platform_interface flutter meta]
- firebase_core 3.12.0 [firebase_core_platform_interface firebase_core_web flutter meta]
- firebase_messaging 15.2.3 [firebase_core firebase_core_platform_interface firebase_messaging_platform_interface firebase_messaging_web flutter meta]
- firebase_storage 12.4.3 [firebase_core firebase_core_platform_interface firebase_storage_platform_interface firebase_storage_web flutter]
- flutter 0.0.0 [characters collection material_color_utilities meta vector_math sky_engine]
- image_picker 1.1.2 [flutter image_picker_android image_picker_for_web image_picker_ios image_picker_linux image_picker_macos image_picker_platform_interface image_picker_windows]

dev dependencies:
- flutter_lints 5.0.0 [lints]
- flutter_test 0.0.0 [flutter test_api matcher path fake_async clock stack_trace vector_math leak_tracker_flutter_testing async boolean_selector characters collection leak_tracker leak_tracker_testing material_color_utilities meta source_span stream_channel string_scanner term_glyph vm_service]

transitive dependencies:
- _flutterfire_internals 1.3.52 [collection firebase_core firebase_core_platform_interface flutter meta]
- async 2.12.0 [collection meta]
- boolean_selector 2.1.2 [source_span string_scanner]
- characters 1.4.0
- clock 1.1.2
- cloud_firestore_platform_interface 6.6.4 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- cloud_firestore_web 4.4.4 [_flutterfire_internals cloud_firestore_platform_interface collection firebase_core firebase_core_web flutter flutter_web_plugins]
- collection 1.19.1
- cross_file 0.3.4+2 [meta web]
- fake_async 1.3.2 [clock collection]
- file_selector_linux 0.9.3+2 [cross_file file_selector_platform_interface flutter]
- file_selector_macos 0.9.4+2 [cross_file file_selector_platform_interface flutter]
- file_selector_platform_interface 2.6.2 [cross_file flutter http plugin_platform_interface]
- file_selector_windows 0.9.3+4 [cross_file file_selector_platform_interface flutter]
- firebase_auth_platform_interface 7.6.0 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_auth_web 5.14.0 [firebase_auth_platform_interface firebase_core firebase_core_web flutter flutter_web_plugins http_parser meta web]
- firebase_core_platform_interface 5.4.0 [collection flutter flutter_test meta plugin_platform_interface]
- firebase_core_web 2.21.0 [firebase_core_platform_interface flutter flutter_web_plugins meta web]
- firebase_messaging_platform_interface 4.6.3 [_flutterfire_internals firebase_core flutter meta plugin_platform_interface]
- firebase_messaging_web 3.10.3 [_flutterfire_internals firebase_core firebase_core_web firebase_messaging_platform_interface flutter flutter_web_plugins meta web]
- firebase_storage_platform_interface 5.2.3 [_flutterfire_internals collection firebase_core flutter meta plugin_platform_interface]
- firebase_storage_web 3.10.10 [_flutterfire_internals async firebase_core firebase_core_web firebase_storage_platform_interface flutter flutter_web_plugins http meta web]
- flutter_plugin_android_lifecycle 2.0.24 [flutter]
- flutter_web_plugins 0.0.0 [flutter characters collection material_color_utilities meta vector_math]
- http 1.3.0 [async http_parser meta web]
- http_parser 4.1.2 [collection source_span string_scanner typed_data]
- image_picker_android 0.8.12+21 [flutter flutter_plugin_android_lifecycle image_picker_platform_interface]
- image_picker_for_web 3.0.6 [flutter flutter_web_plugins image_picker_platform_interface mime web]
- image_picker_ios 0.8.12+2 [flutter image_picker_platform_interface]
- image_picker_linux 0.2.1+1 [file_selector_linux file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_macos 0.2.1+2 [file_selector_macos file_selector_platform_interface flutter image_picker_platform_interface]
- image_picker_platform_interface 2.10.1 [cross_file flutter http plugin_platform_interface]
- image_picker_windows 0.2.1+1 [file_selector_platform_interface file_selector_windows flutter image_picker_platform_interface]
- leak_tracker 10.0.8 [clock collection meta path vm_service]
- leak_tracker_flutter_testing 3.0.9 [flutter leak_tracker leak_tracker_testing matcher meta]
- leak_tracker_testing 3.0.1 [leak_tracker matcher meta]
- lints 5.1.1
- matcher 0.12.17 [async meta stack_trace term_glyph test_api]
- material_color_utilities 0.11.1 [collection]
- meta 1.16.0
- mime 2.0.0
- path 1.9.1
- plugin_platform_interface 2.1.8 [meta]
- sky_engine 0.0.0
- source_span 1.10.1 [collection path term_glyph]
- stack_trace 1.12.1 [path]
- stream_channel 2.1.4 [async]
- string_scanner 1.4.1 [source_span]
- term_glyph 1.2.2
- test_api 0.7.4 [async boolean_selector collection meta source_span stack_trace stream_channel string_scanner term_glyph]
- typed_data 1.4.0 [collection]
- vector_math 2.1.4
- vm_service 14.3.1
- web 1.1.0

Additional context and comments

No response

[SelaseKay]

Hi @realtebo, your logs point to Firestore. AFAIK, this usually occurs when your device is not connected to the internet. Seems related to firebase/firebase-android-sdk#3302. Kindly ensure you're connected to the internet and try again. Also, is this happening on a real device or emulator?

[flurrux]

i'm getting the exact same error(s) but only when disabling wifi.
backgrounding the app works fine for me and i also use firebase messaging.
it happens both on the emulator and my real device.

is this the expected behaviour when wifi connection is lost?