Android Firebase build errorAndroid: google-services “fix the version conflict” / “depends on another at an exact version”

Why the versions conflict, and the fix

1. 01

   An old google-services plugin

   The old message names the fix: the plugin is older than the Play services libraries it checks. Raise com.google.gms.google-services to the version Firebase’s Android setup guide shows, then sync and build again.

   // android/settings.gradle.kts (Flutter) or the root build.gradle.kts
   plugins {
       id("com.google.gms.google-services") version "4.5.0" apply false
   }

2. 02

   Firebase libraries pinned to different versions

   “When you use the Firebase BoM in your app, the BoM automatically pulls in the individual library versions mapped to BoM's version.” Firebase, Firebase Android BoM

   Each Firebase library declared with its own version drifts apart over time. The BoM sets one version for all of them. Remove the version numbers from the individual lines.

   // android/app/build.gradle.kts
   dependencies {
       implementation(platform("com.google.firebase:firebase-bom:35.1.0"))
       implementation("com.google.firebase:firebase-analytics")
       implementation("com.google.firebase:firebase-messaging")
   }

3. 03

   Another SDK pulls an older Play services library

   An ads, maps or analytics SDK can depend on an older com.google.android.gms library. The error lists the dependencies that lead to the failing artifact. Print the dependency tree to see which SDK it is, then upgrade that SDK.

   cd android
   ./gradlew :app:dependencies --configuration debugCompileClasspath
   # the error’s own suggestion:
   ./gradlew --info :app:assembleDebug

4. 04

   Turning the check off

   “Behavior exhibited by the library will be unknown.” GitHub, google-services version check (DependencyInspector.java)

   The plugin has a disableVersionCheck switch. It hides the error but leaves the mismatched libraries in the app, so use it only to unblock a build while you fix the versions.

   // android/app/build.gradle.kts (stopgap only)
   googleServices {
       disableVersionCheck = true
   }

Checked against the vendor’s docs on November 8, 2026: Firebase: Android BoM (Bill of Materials); Firebase: Add Firebase to your Android project; google/play-services-plugins: version check source.

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