firebase analytics integration issue in .net maui project for android

Question

• Xamarin.Firebase.Analytics - installed successfuly
• Xamarin.Firebase.iOS.Analytics - installed successfully

i am trying to integrate firebase analytics in .net maui project but getting some unknown error on android.

Added google-services.json to android project & set build action as googleservicejson and addedGoogleService-Info.plist to iOS project.

working fine on iOS but facing some unknown error on android, please see the code below i have initiallized firebase -

public class MainActivity : MauiAppCompatActivity

  {
  

  public static Activity FormsContext { get; set; }

  protected override void OnCreate(Bundle savedInstanceState)

  {

      Window.SetStatusBarColor(Color.FromArgb("#FF73B650").ToPlatform());

      CrossFingerprint.SetCurrentActivityResolver(() => this);

      base.OnCreate(savedInstanceState);

      // Initialize Firebase

      FirebaseApp.InitializeApp(this);

  }
  }  

however am getting below error please help me to fix this:-

  /Users/ashishgupta/Projects/CCS_Mobile_Maui/CCS_MOBILE_MAUI/CCSMobile-MAUI/CCSMobile-MAUI: Error JAVA0000: Error in /Users/ashishgupta/.nuget/packages/xamarin.androidx.collection.jvm/1.4.5.1/buildTransitive/net8.0-android34.0/../../jar/androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class:
  
  Type androidx.collection.ArrayMapKt is defined multiple times: /Users/ashishgupta/.nuget/packages/xamarin.androidx.collection.jvm/1.4.5.1/buildTransitive/net8.0-android34.0/../../jar/androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class, /Users/ashishgupta/.nuget/packages/xamarin.androidx.collection.ktx/1.2.0.9/buildTransitive/net6.0-android31.0/../../jar/androidx.collection.collection-ktx.jar:androidx/collection/ArrayMapKt.class
  
  Compilation failed
  
  java.lang.RuntimeException: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: /Users/ashishgupta/.nuget/packages/xamarin.androidx.collection.jvm/1.4.5.1/buildTransitive/net8.0-android34.0/../../jar/androidx.collection.collection-jvm.jar
  
  androidx/collection/ArrayMapKt.class
  

at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:126)

at com.android.tools.r8.D8.main(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:5)
  Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, origin: /Users/ashishgupta/.nuget/packages/xamarin.androidx.collection.jvm/1.4.5.1/buildTransitive/net8.0-android34.0/../../jar/androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class
  

at Version.fakeStackEntry(Version_8.1.56.java:0)

at com.android.tools.r8.M.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:5)

at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:81)

at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:32)

at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:31)

at com.android.tools.r8.utils.R0.b(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:2)

at com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:26)

at com.android.tools.r8.D8.b(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:13)

at com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:24)

at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:113)

... 1 more
  Caused by: com.android.tools.r8.utils.b: Type androidx.collection.ArrayMapKt is defined multiple times: /Users/ashishgupta/.nuget/packages/xamarin.androidx.collection.jvm/1.4.5.1/buildTransitive/net8.0-android34.0/../../jar/androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class, /Users/ashishgupta/.nuget/packages/xamarin.androidx.collection.ktx/1.2.0.9/buildTransitive/net6.0-android31.0/../../jar/androidx.collection.collection-ktx.jar:androidx/collection/ArrayMapKt.class
  


at com.android.tools.r8.utils.O2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:21)

at com.android.tools.r8.utils.O2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:26)

at com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:44)

at com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:10)

at java.base/java.util.concurrent.ConcurrentHashMap.merge(ConcurrentHashMap.java:2048)

at com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:6)

at com.android.tools.r8.graph.b4$a.e(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:7)

at com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:58)

at com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:9)

at com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:8)

at com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:29)

at com.android.tools.r8.D8.d(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:17)

at com.android.tools.r8.D8.c(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:1)

at com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:28)

... 6 more
```   (JAVA0000) (CCSMobile-MAUI) java

Answer 1

Hello,

Please install Xamarin.AndroidX.Fragment.Ktx nuget package.

Here is my tested nuget package in MAUI demo, it is working as normal for android platform.

<ItemGroup Condition="'$(TargetFramework)' == 'net8.0-android'">
  <PackageReference Include="Xamarin.AndroidX.Fragment.Ktx">
      <Version>1.8.5.1</Version>
  </PackageReference>
  <PackageReference Include="Xamarin.Firebase.Analytics">
      <Version>122.1.2.1</Version>
  </PackageReference>
</ItemGroup>

Best Regards,

Leon Lu

---

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