Android build errorGradle: “Could not resolve all files for configuration”

Why Gradle can’t download it, and the fix

1. 01

   The repository is not declared

   “Gradle looks for the files in whichever online repositories are specified in the dependencyResolutionManagement { repositories {...} } block of your settings.gradle file.” Android Developers, Manage remote repositories

   Gradle only searches the repositories you list. Newer projects list them in settings.gradle (dependencyResolutionManagement); Flutter and React Native projects often still list them in android/build.gradle under allprojects { repositories { ... } }. Libraries published to JitPack or a vendor’s own Maven repository need that repository added in whichever place your project uses.

   // settings.gradle.kts
   dependencyResolutionManagement {
     repositories {
       google()
       mavenCentral()
       maven { url = uri("https://jitpack.io") }
     }
   }
   
   // Groovy (build.gradle): maven { url "https://jitpack.io" }

2. 02

   An old project still relies on JCenter

   “The JCenter repository, which was included by default in the past, became read-only on March 31st, 2021.” Android Developers, Manage remote repositories

   Older projects and plugins list jcenter(), and some old library versions only exist there. Replace jcenter() with mavenCentral() and update libraries to versions published on Maven Central.

3. 03

   Project repositories are blocked

   With repositoriesMode set to FAIL_ON_PROJECT_REPOS, repositories declared in a module’s build.gradle are ignored or rejected. Move them into dependencyResolutionManagement in settings.gradle so every module uses them.

4. 04

   The Android Gradle plugin itself can’t be found (:classpath)

   “The order in which you list each repository determines the order in which Gradle searches the repositories for each project dependency.” Android Developers, Manage remote repositories

   Could not resolve all files for configuration ':classpath' or Could not find com.android.tools.build:gradle is about build plugins, not app libraries. Plugins come from the pluginManagement repositories in settings.gradle (or buildscript { repositories } in older projects), so add google(), mavenCentral() and gradlePluginPortal() there, and check the plugin version exists.

   // settings.gradle.kts
   pluginManagement {
     repositories {
       google()
       mavenCentral()
       gradlePluginPortal()
     }
   }

5. 05

   Flutter: io.flutter:flutter_embedding not found

   The Flutter engine artifacts come from Flutter’s own Maven repository, which the Flutter Gradle plugin normally adds. A custom repositories block with FAIL_ON_PROJECT_REPOS, or an old plugin setup, can leave it out. Run flutter clean and flutter pub get, update to the current Flutter Gradle plugin setup, or add https://storage.googleapis.com/download.flutter.io as a Maven repository.

6. 06

   Offline mode, a proxy or a version that does not exist

   Gradle offline mode in Android Studio, a corporate proxy or a firewall stops every download. A typo in the version, or a version that was never published, fails only for that library. Check the version on the repository’s website, then refresh.

   ./gradlew build --refresh-dependencies

Checked against the vendor’s docs on November 7, 2026: Android Developers: Manage remote repositories; Android Developers: Fix dependency resolution errors.

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