[Bug] Unity 6 - Firebase Messaging Theme.AppCompat - Crash

[firesightstudios]

Description

Crash at app launch. You need to use a Theme.AppCompat theme (or descendant) with this activity.

Android version 8.0.0 - Knox API 25
Unity 6 - 37f1
Firebase Messaging sdk only

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" package="mypackage" android:versionCode="1" android:versionName="1.0">
  <application android:label="@string/app_name" android:icon="@drawable/app_icon">
    <!-- The MessagingUnityPlayerActivity is a class that extends
         UnityPlayerActivity to work around a known issue when receiving
         notification data payloads in the background. -->
    <activity android:name="com.google.firebase.MessagingUnityPlayerActivity" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">
      <intent-filter>
        <action android:name="android.intent.action.MAIN" />
        <category android:name="android.intent.category.LAUNCHER" />
      </intent-filter>
      <meta-data android:name="unityplayer.UnityActivity" android:value="true" />
    </activity>
    <service android:name="com.google.firebase.messaging.MessageForwardingService" android:permission="android.permission.BIND_JOB_SERVICE" android:exported="true"></service>
  </application>
</manifest>

Reproducing the issue

No response

Firebase Unity SDK Version

12.7.0

Unity editor version

Unity 6 - 37f1

Installation Method

.unitypackage

Problematic Firebase Component(s)

Messaging

Other Firebase Component(s) in use

No response

Additional SDKs you are using

{
  "dependencies": {
    "com.unity.2d.sprite": "1.0.0",
    "com.unity.device-simulator.devices": "1.0.0",
    "com.unity.ext.nunit": "2.0.5",
    "com.unity.feature.2d": "2.0.1",
    "com.unity.ide.rider": "3.0.35",
    "com.unity.inputsystem": "1.12.0",
    "com.unity.multiplayer.center": "1.0.0",
    "com.unity.multiplayer.playmode": "1.3.3",
    "com.unity.netcode.gameobjects": "2.2.0",
    "com.unity.nuget.newtonsoft-json": "3.2.1",
    "com.unity.purchasing": "4.12.2",
    "com.unity.render-pipelines.universal": "17.0.3",
    "com.unity.services.authentication": "3.4.1",
    "com.unity.services.core": "1.14.0",
    "com.unity.services.friends": "1.1.0",
    "com.unity.services.multiplayer": "1.1.2",
    "com.unity.services.wire": "1.2.8",
    "com.unity.sysroot": "2.0.10",
    "com.unity.sysroot.linux-x86_64": "2.0.9",
    "com.unity.toolchain.win-x86_64-linux-x86_64": "2.0.10",
    "com.unity.ugui": "2.0.0",
    "com.unity.ui": "2.0.0",
    "com.unity.ui.builder": "2.0.0",
    "com.unity.modules.accessibility": "1.0.0",
    "com.unity.modules.ai": "1.0.0",
    "com.unity.modules.androidjni": "1.0.0",
    "com.unity.modules.animation": "1.0.0",
    "com.unity.modules.assetbundle": "1.0.0",
    "com.unity.modules.audio": "1.0.0",
    "com.unity.modules.cloth": "1.0.0",
    "com.unity.modules.director": "1.0.0",
    "com.unity.modules.imageconversion": "1.0.0",
    "com.unity.modules.imgui": "1.0.0",
    "com.unity.modules.jsonserialize": "1.0.0",
    "com.unity.modules.particlesystem": "1.0.0",
    "com.unity.modules.physics": "1.0.0",
    "com.unity.modules.physics2d": "1.0.0",
    "com.unity.modules.screencapture": "1.0.0",
    "com.unity.modules.subsystems": "1.0.0",
    "com.unity.modules.terrain": "1.0.0",
    "com.unity.modules.terrainphysics": "1.0.0",
    "com.unity.modules.tilemap": "1.0.0",
    "com.unity.modules.ui": "1.0.0",
    "com.unity.modules.uielements": "1.0.0",
    "com.unity.modules.uielementsnative": "1.0.0",
    "com.unity.modules.umbra": "1.0.0",
    "com.unity.modules.unityanalytics": "1.0.0",
    "com.unity.modules.unitywebrequest": "1.0.0",
    "com.unity.modules.unitywebrequestassetbundle": "1.0.0",
    "com.unity.modules.unitywebrequestaudio": "1.0.0",
    "com.unity.modules.unitywebrequesttexture": "1.0.0",
    "com.unity.modules.unitywebrequestwww": "1.0.0",
    "com.unity.modules.vehicles": "1.0.0",
    "com.unity.modules.video": "1.0.0",
    "com.unity.modules.vr": "1.0.0",
    "com.unity.modules.wind": "1.0.0",
    "com.unity.modules.xr": "1.0.0"
  }
}

Targeted Platform(s)

Android

Unity editor platform

Windows

Scripting Runtime

IL2CPP

Release Distribution Type

Pre-built SDK from https://firebase.google.com/download/unity

Relevant Log Output

java.lang.RuntimeException: Unable to start activity ComponentInfo{mypackage/com.google.firebase.MessagingUnityPlayerActivity}:
        java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2957)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3032)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1696)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6944)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)
        Caused by: java.lang.IllegalStateException: You need to use a Theme.AppCompat theme (or descendant) with this activity.
        at androidx.appcompat.app.h.e0(SourceFile:1)
        at androidx.appcompat.app.h.k0(SourceFile:1)
        at androidx.appcompat.app.h.J(SourceFile:1)
        at androidx.appcompat.app.d.setContentView(SourceFile:2)
        at com.google.androidgamesdk.GameActivity.onCreateSurfaceView(Unknown Source:28)
        at com.unity3d.player.UnityPlayerGameActivity.onCreateSurfaceView(Unknown Source:0)
        at com.google.androidgamesdk.GameActivity.onCreate(Unknown Source:0)
        at com.unity3d.player.UnityPlayerGameActivity.onCreate(Unknown Source:0)
        at com.google.firebase.MessagingUnityPlayerActivity.onCreate(Unknown Source:10)
        at android.app.Activity.performCreate(Activity.java:7183)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1220)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2910)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3032) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1696) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6944) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)

If using CocoaPods for Apple platforms, the project's Podfile.lock

Expand Podfile.lock snippet

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[google-oss-bot]

I couldn't figure out how to label this issue, so I've labeled it for a human to triage. Hang tight.

[firesightstudios]

Just for clarification. That is the auto generated manifest file.

I tried quite a bit of themes and finally found one that would let me build.

I added this theme to the unity activity entry

android:theme="@android:style/Theme.DeviceDefault.Light.NoActionBar"

The app builds and loads so far with no issues.

[rulutieh]

Unity6 32f1 - 12.8.0 firebase messaging has same issue.

[hoangnvtdnb]

Unity 6 38f1 - 12.7.0 also has the same problem (firebase messages). I tried adjusting android:theme but it doesn't seem to work.

[argzdev]

Hey folks, thanks for bringing this up to our attention. I was able to reproduce the same behavior. I'll let our engineers know and check this out.

[armedwaffles]

Had the same problem!

Here is how I fixed it.

Updated the AndroidManifest.xml with the following
(Located in Assets -> Plugins - > Android)

Added "android:theme="@style/BaseUnityGameActivityTheme" in the Unity activity entry

Note that this needs to in between "android:name" and "android:configChanges"

As an example:

Before it was:

<activity
android:name="com.google.firebase.MessagingUnityPlayerActivity"

android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">

After I added the change

<activity
android:name="com.google.firebase.MessagingUnityPlayerActivity" android:theme="@style/BaseUnityGameActivityTheme" android:configChanges="fontScale|keyboard|keyboardHidden|locale|mnc|mcc|navigation|orientation|screenLayout|screenSize|smallestScreenSize|uiMode|touchscreen">

You can read more about folks having issues with Unity 6 game crashes here and how they updated the AndroidManifest and some background on why this was an issue:
https://discussions.unity.com/t/unity-6-android-game-crashes-on-android-9-device/1538784/15

If this helped you, give me an emoji :)