Firebase remoteConfig return no value #2186

KevynBct · 2020-11-19T15:57:34Z

[REQUIRED] Step 2: Describe your environment

Android Studio version: 4.1.1
Firebase Component: firebase-config/firebase-config-ktx
Component version: 20.0.1

Hello everyone,

Since I've updated the component firebase-config from 20.0.0 to 20.0.1, I can't get values from Firebase.remoteConfig.

Nothing has changed in my code since previous version :

First I fetch and active in my MainActivity

val configSettings = remoteConfigSettings {
    minimumFetchIntervalInSeconds = 3600
}

Firebase.remoteConfig.setConfigSettingsAsync(configSettings)

Firebase.remoteConfig.fetchAndActivate().addOnCompleteListener(this) { task ->

    if (task.isComplete) {
        // Some code here
    }

}

And then in a fragment I get values :

with (Firebase.remoteConfig) {

    val a = getValue("key1").asString()
    val b = getValue("key2").asString()

}

The text was updated successfully, but these errors were encountered:

google-oss-bot · 2020-11-19T15:57:35Z

I found a few problems with this issue:

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T1mmyK0 · 2020-11-23T01:33:18Z

I have the same issue.
When updating the app to the new RemoteConfig version, no values are received anymore and the default values apply.
Reinstalling fixes the issue, but I cannot ask all my users to reinstall the app or clear data.

AgiMaulana · 2020-11-25T05:04:22Z

I've encountered the same issue. The value has been synced in previous remote config SDK version when it updated with the version of 20.0.1 the data was lost. Although can be resolved simply by staling the remote config this is not the convenient way I think.

AgiMaulana · 2020-11-25T05:31:16Z

This is reproducible, try to build with the version 19.2.0 everything is okay, then rebuild with the version 20.0.1 remote config return no value for the given key

T1mmyK0 · 2020-11-25T12:16:16Z

@AgiMaulana Same here. And when downgrading to 20.0.0 it works fine again. I have downgraded RemoteConfig in my production apk again.

danasilver · 2020-11-30T23:19:18Z

Looking into this. I'm unable to reproduce it in a new Kotlin app with firebase-config-ktx:20.0.1 and firebase-analytics-ktx:18.0.0 as dependencies. @vic-flair do you mind taking a look, too?

bocops · 2020-12-01T09:15:26Z

@danasilver I'm seeing the same as others have reported, with a firebase-config:20.0.x dependency and a firebase-analytics:18.0.0 dependency (transitively via firebase-core):

Fresh install (via Android Studio, "Debug app") of app with a 20.0.0 dependency.
Run app, correct remote config values are shown
Stop app
Update dependency to 20.0.1 and install.
Run app, correct remote config values are not shown

If, between steps 3 and 4, I "clear data" for this app on the device, everything works correctly.

If, instead of clearing data, I set the device to airplane mode before steps 4/5, correct values are still not shown. Because of this, I believe the problematic part is not actually the fetching but the activating of a remote config that is already cached on the device.

bocops · 2020-12-01T09:41:03Z

Could the issue be ConfigStorageClient.read() (permalink below)?

It seems that, if a config was written to disk without personalization (version <20.0.1), then trying to read it with personalization (version =20.0.1) should lead to JSONObject.getJSONObject(key) being called with a key that doesn't exist via ConfigContainer.copyOf() and thus throwing a JSONException, which in turn makes the method return null.

firebase-android-sdk/firebase-config/src/main/java/com/google/firebase/remoteconfig/internal/ConfigStorageClient.java

Line 105 in 0fa174c

return ConfigContainer.copyOf(containerJson);

danasilver · 2020-12-01T18:44:19Z

@bocops Thanks for the help investigating. I'm able to reproduce the issue now with those steps. It does seem like the issue is reading the cached config. Working on a fix for this.

maulikhirani · 2020-12-02T11:14:59Z

This issue is really scary.
Can we expect a fixed version ASAP?

Now that Firebase is recommending BoM (Bills of Materials) for adding dependencies, I don't want to specify an older version explicitly just for Remote Config.

AgiMaulana · 2020-12-03T03:38:37Z

For everyone who has shipped the remote config 20.0.1 within your production app and already implemented propagating realtime update, you can to try propagate realtime update to stale the local config so the app can rewrite local config with a new one using the new writing scheme.

I've fix the issue on production app using that workaround

jd565 · 2020-12-03T12:42:26Z

We have had the same issue and fixed by noticing when the app has been updated and calling FirebaseRemoteConfig.getInstance().reset(), which has fixed the issue for us.

danasilver · 2020-12-03T19:07:44Z

Remote Config SDK version 20.0.2 is live now with a fix. A new version of the Firebase BOM (26.1.1) has been released, too, including this version.

Thanks all for your help reporting and investigating the issue!

XinyueZ · 2020-12-09T15:35:15Z

Was this bug impacting the Flutter version?

danasilver · 2020-12-09T18:47:29Z

@XinyueZ I don't think this affected Flutter since it looks like the Flutter SDK is using Firebase Android BOM 25.12.0 and this issue was in version 26.1.0 of the BOM. It's fixed in version 26.1.1.

google-oss-bot added the needs-triage label Nov 19, 2020

rlazo assigned danasilver Nov 25, 2020

rlazo added api: remoteconfig and removed needs-triage labels Nov 25, 2020

erikeldridge mentioned this issue Dec 1, 2020

Check for missing metadata when constructing ConfigContainer. #2217

Merged

danasilver closed this as completed Dec 3, 2020

mikehardy mentioned this issue Dec 7, 2020

feat!: forward port to firebase-ios-sdk v7+ / firebase-android-sdk v26+ firebase/flutterfire#4249

Merged

10 tasks

XinyueZ mentioned this issue Dec 9, 2020

IOS: remoteConfig.activateFetched() not working firebase/flutterfire#2868

Closed

firebase locked and limited conversation to collaborators Jan 3, 2021

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Firebase remoteConfig return no value #2186

Firebase remoteConfig return no value #2186

KevynBct commented Nov 19, 2020 •

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T1mmyK0 commented Nov 23, 2020

AgiMaulana commented Nov 25, 2020

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T1mmyK0 commented Nov 25, 2020

danasilver commented Nov 30, 2020

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danasilver commented Dec 1, 2020

maulikhirani commented Dec 2, 2020

AgiMaulana commented Dec 3, 2020

jd565 commented Dec 3, 2020

danasilver commented Dec 3, 2020

XinyueZ commented Dec 9, 2020 •

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danasilver commented Dec 9, 2020

Firebase remoteConfig return no value #2186

Firebase remoteConfig return no value #2186

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KevynBct commented Nov 19, 2020 • edited Loading

[REQUIRED] Step 2: Describe your environment

google-oss-bot commented Nov 19, 2020

T1mmyK0 commented Nov 23, 2020

AgiMaulana commented Nov 25, 2020

AgiMaulana commented Nov 25, 2020

T1mmyK0 commented Nov 25, 2020

danasilver commented Nov 30, 2020

bocops commented Dec 1, 2020 • edited Loading

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danasilver commented Dec 1, 2020

maulikhirani commented Dec 2, 2020

AgiMaulana commented Dec 3, 2020

jd565 commented Dec 3, 2020

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KevynBct commented Nov 19, 2020 •

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bocops commented Dec 1, 2020 •

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XinyueZ commented Dec 9, 2020 •

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