Build failed with Nativescript Android 8.5: Execution failed for task ':app:mergeDebugNativeLibs'.

[Alexander Mai]

Environment
Provide version numbers for the following components (information can be retrieved by running tns info in your project folder or by inspecting the package.json of the project):

• CLI: 8.5.3
• Nativescript Core: 8.5.3
• Nativescript Angulat 15.2.0
• Android Runtime: 8.5.0
• Plugin(s): ñativescript/pdf 1.0.1

Describe the bug
Build fails in Step Gradle Build when / after adding plugin dependencies

Building project...
Gradle build...
         + applying user-defined configuration from <PROJECT-PATH>/App_Resources/Android/before-plugins.gradle
         + applying user-defined configuration from <PROJECT-PATH>/App_Resources/Android/before-plugins.gradle
         + setting applicationId
         + applying user-defined configuration from <PROJECT-PATH>/App_Resources/Android/app.gradle
         + adding nativescript runtime package dependency: nativescript-optimized-with-inspector
         + adding aar plugin dependency: <PROJECT-PATH>/node_modules/@nativescript/core/platforms/android/core.aar
         + adding aar plugin dependency: <PROJECT-PATH>/node_modules/@nativescript/core/platforms/android/widgets-release.aar

Execution failed for task ':app:mergeDebugNativeLibs'.
2 files found with path 'lib/arm64-v8a/libc++_shared.so' from inputs:
 - <HOME-DIR>/.gradle/caches/transforms-3/cd760d28106a1b4d4e96396bcec235da/transformed/jetified-nativescript-optimized-with-inspector/jni/arm64-v8a/libc++_shared.so
 - <HOME-DIR>/.gradle/caches/transforms-3/5f9aea1bacbd967e47cda037c65bd0e3/transformed/jetified-PdfiumAndroid-1.0.1/jni/arm64-v8a/libc++_shared.so
If you are using jniLibs and CMake IMPORTED targets, see
https://developer.android.com/r/tools/jniLibs-vs-imported-targets

Unable to apply changes on device: emulator-5554. Error is: Command ./gradlew failed with exit code 1.

Changing the devDependency @nativescript/android to 8.4.0 is working well.

To Reproduce
Create an empty nativescript project and just add the plugin @nativescript/pdf

Expected behavior
The app schould build

package.json dependencies

{
  "name": "example",
  "main": "src/main.ts",
  "version": "1.0.0",
  "private": true,
  "dependencies": {
    "@angular/animations": "~15.2.0",
    "@angular/common": "~15.2.0",
    "@angular/compiler": "~15.2.0",
    "@angular/core": "~15.2.0",
    "@angular/forms": "~15.2.0",
    "@angular/platform-browser": "~15.2.0",
    "@angular/platform-browser-dynamic": "~15.2.0",
    "@angular/router": "~15.2.0",
    "@nativescript/angular": "^15.2.0",
    "@nativescript/core": "~8.5.0",
    "@nativescript/pdf": "~1.0.0",
    "@nativescript/theme": "~3.0.0",
    "rxjs": "~7.6.0",
    "zone.js": "~0.13.0"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~15.2.0",
    "@angular/compiler-cli": "~15.2.0",
    "@nativescript/android": "~8.5.0",
    "@nativescript/types": "~8.5.0",
    "@nativescript/webpack": "~5.0.14",
    "@ngtools/webpack": "~15.2.0",
    "typescript": "~4.9.0"
  }
}

[JWiseCoder]

We're also receiving an error like this when building for Android in NativeScript 8.5

Execution failed for task ':app:mergeDebugNativeLibs'.
2 files found with path 'lib/arm64-v8a/libc++_shared.so' from inputs:
 - {home directory}/.gradle/caches/transforms-3/5f9aea1bacbd967e47cda037c65bd0e3/transformed/jetified-PdfiumAndroid-1.0.1/jni/arm64-v8a/libc++_shared.so
 - {home directory}/.gradle/caches/transforms-3/cd760d28106a1b4d4e96396bcec235da/transformed/jetified-nativescript-optimized-with-inspector/jni/arm64-v8a/libc++_shared.so
If you are using jniLibs and CMake IMPORTED targets, see
https://developer.android.com/r/tools/jniLibs-vs-imported-targets

Command ./gradlew failed with exit code 1

There is a workaround: add this at the end of the android block of your app.gradle file:

EDIT: Use the packagingOptions from the following post by @alexander-mai

This works, but it's only a workaround. This issue still needs to be addressed inside NativeScript.

EDIT: This appears to be caused by the @nativescript/pdf dependency.

[Alexander Mai]

Different versions of the libc++ library are used in @nativescript/android and the PDF library used in @nativescript/pdf. This leads to the mentioned conflict. The used library 'TalbotGooday:AndroidPdfViewer' would have to be updated so that the same libc++ is used. It was last updated 3 years ago, but there are updated forks.

My workaround is

    packagingOptions {
        pickFirst 'lib/x86/libc++_shared.so'
        pickFirst 'lib/x86_64/libc++_shared.so'
        pickFirst 'lib/armeabi-v7a/libc++_shared.so'
        pickFirst 'lib/arm64-v8a/libc++_shared.so'
    }

[JWiseCoder]

@alexander-mai Thanks, I actually switched to doing that after posting the above. I should have gone back and updated my post.

If there are updated forks, then that's what @nativescript/pdf should use, right? I entered this same issue over there too. I'd rather not have to leave this in the app.gradle.

[Alexander Mai]

There is already a an open issue for @nativescript/pdf on plugin repository: NativeScript/plugins#503 facing this problem.