Android build fails with "Duplicate class com.caverock.androidsvg" caused by conflicting androidsvg JAR and AAR variants

[carloswitei]

Description

Building for Android fails at checkDebugDuplicateClasses because @d11/react-native-fast-image pulls in two incompatible variants of the same library simultaneously:

• com.caverock:androidsvg:1.4 (JAR) — declared directly in the package's android/build.gradle
• com.caverock:androidsvg-aar:1.4 (AAR) — pulled in transitively via com.github.penfeizhou.android.animation:glide-plugin:3.0.5

Both artifacts contain the exact same Java classes, which causes Android Gradle's duplicate class check to fail.

Steps to reproduce

1. Create a React Native project with Expo (SDK 54, newArchEnabled: true)
2. Install @d11/react-native-fast-image: npm install @d11/react-native-fast-image
3. Run: expo run:android
4. Build fails at Task :app:checkDebugDuplicateClasses

Expected behavior

The Android build completes successfully without duplicate class errors.
The package should use com.caverock:androidsvg-aar:1.4 consistently (the AAR variant), since glide-plugin already brings it transitively. Including the separate JAR variant (com.caverock:androidsvg:1.4) is redundant and causes a conflict.

Stacktrace or Logs

FAILURE: Build failed with an exception.

  * What went wrong:
  Execution failed for task ':app:checkDebugDuplicateClasses'.
  > A failure occurred while executing com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable
     > Duplicate class com.caverock.androidsvg.BuildConfig found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and
  androidsvg-aar-1.4.aar -> androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4)
       Duplicate class com.caverock.androidsvg.CSSParseException found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and
  androidsvg-aar-1.4.aar -> androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4)
       Duplicate class com.caverock.androidsvg.SVG found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and androidsvg-aar-1.4.aar ->
  androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4)
       [... dozens more classes from com.caverock.androidsvg package ...]

Output of npx react-native info

react-native: 0.81.5
expo: 54.0.31
@d11/react-native-fast-image: 8.13.0
Node: v24.13.0
Java: OpenJDK 17.0.18
OS: Ubuntu 24.04.4 LTS

Affected React-Native Architecture

New Architecture

Affected Platforms

Runtime - Android

Reproducer

https://github.com/dream-sports-labs/react-native-fast-image/blob/main/android/build.gradle

Screenshots and Videos

No response

[github-actions]

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[Pauligrinder]

I ran into this issue today as well. I don't need SVG support for Fast-Image in my project, so this solved it for me:
https://github.com/dream-horizon-org/react-native-fast-image?tab=readme-ov-file#optional-disable-svg-decoders

If you do need SVG support from it though, then you'll need something else.

[devanshsaini11]

This is already addressed in #354, will try to release a new version this week with all latest fixes

[Annieday]

Hi @devanshsaini11, do we have an estimate on when the next release will be? Thanks.

[milicedin]

@devanshsaini11 I am also seeing the same issue on expo sdk 55

Duplicate class com.caverock.androidsvg.SVGParser$SVGAttr found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and androidsvg-aar-1.4.aar -> androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4) Duplicate class com.caverock.androidsvg.SVGParser$SVGElem found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and androidsvg-aar-1.4.aar -> androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4) Duplicate class com.caverock.androidsvg.SVGParser$TextScanner found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and androidsvg-aar-1.4.aar -> androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4) Duplicate class com.caverock.androidsvg.SVGParser$XPPAttributesWrapper found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and androidsvg-aar-1.4.aar -> androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4) Duplicate class com.caverock.androidsvg.SimpleAssetResolver found in modules androidsvg-1.4.jar -> androidsvg-1.4 (com.caverock:androidsvg:1.4) and androidsvg-aar-1.4.aar -> androidsvg-aar-1.4-runtime (com.caverock:androidsvg-aar:1.4)

[raozain]

For Android:
android/app/build.gradle

android {
    ndkVersion rootProject.ext.ndkVersion

    compileSdk rootProject.ext.compileSdkVersion
//add this
    configurations.configureEach {
        resolutionStrategy.eachDependency { details ->
            if (details.requested.group == 'com.caverock' && details.requested.name == 'androidsvg-aar') {
                details.useTarget "com.caverock:androidsvg:${details.requested.version}"
            }
        }
    }
//add this