React-Native Build Failed app:mergeDebugAssets

user_4600072 0
Viewed 23603

I completed a react-native app for Android, and now when I try to

run npm android, I get this error:

 FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:mergeDebugAssets'.
> Error: java.lang.RuntimeException: java.lang.RuntimeException: java.nio.file.AccessDeniedException:
C:\Users\SONY\AwesomeProject\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts

Please can you help me?

Many Thanks

React-native

Caused by: java.nio.file.AccessDeniedException: C:\Users\SONY\AwesomeProject\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts at com.android.ide.common.resources.MergedAssetWriter$AssetWorkAction.run(MergedAssetWriter.java:84) ... 1 more

FAILURE: Build failed with an exception.

  • What went wrong: Execution failed for task ':app:mergeDebugAssets'.

    Error: java.lang.RuntimeException: java.lang.RuntimeException: java.nio.file.AccessDeniedException: C:\Users\SONY\AwesomeProject\android\app\build\intermediates\merged_assets\debug\mergeDebugAssets\out\fonts

I want to successfully build the android app

react-native android
7 Answers

Try running this inside your project directory:

  1. cd android
  2. gradlew clean
  3. cd..
  4. react-native run-android
user_88609310

I had this issue and for me ./gradlew clean didn't help.

But I found a file called assets in android/app/src/main that git showed as untracked. When I removed the assets file I could build the project without problems again.

I use Android Studio for debugging java code and I would guess that is why the assets file was created.

user_120192490

For Linux / MacOS- ./gradlew clean

Windows PowerShell- .\gradlew clean

Windows cmd- gradlew clean

user_148343820

If you have installed react-native-vector-icons, try to unlink it by using this command

react-native unlink react-native-vector-icons

user_191548450

Go to android/app/build.gradle, add the following lines of codes:

dependencies {
   implementation 'com.android.support:multidex:1.0.3' //enter the latest version 
}
android {
  defaultConfig {
    multiDexEnabled true // This code line
  }
}

Then run again, it'll work. I tried and it worked for me.

user_81307560

Nothing worked for me, just created a new project and copied all of my work to it, and finally it worked.

user_117534760

In my case, files that were present in android\app\scr\main\assets\fonts folder were causing error after deleting them error goes away and app is also working fine.

user_158567050
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