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Pawara Siriwardhane
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I try to build a ReactNative app using ReactNative CLI following the steps in their documentation: Link for the documentation

After downloading the initializing the App I tried to run the app:

  1. npx react-native start - to start the metro bundler and it's successfully launched.
  2. npx react-native run-android - to start the application on the android emulator but failed to build.

It gave the following error message:

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081 Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01 Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01

Execution failed for task ':app:processDebugMainManifest'.

Unable to make field private final java.lang.String java.io.File.path accessible: module java.base does not "opens java.io" to unnamed module @26c4a53

The problem is I have already added the required path variables as follows. So, how can I get the above error? Does anybody know how to resolve this issue, please?

Screenshot of the powershell output for checking path variables'User variables':

enter image description here

I try to build a ReactNative app using ReactNative CLI following the steps in their documentation: Link for the documentation

After downloading the initializing the App I tried to run the app:

  1. npx react-native start - to start the metro bundler and it's successfully launched.
  2. npx react-native run-android - to start the application on the android emulator but failed to build.

It gave the following error message:

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081 Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01 Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01

Execution failed for task ':app:processDebugMainManifest'.

Unable to make field private final java.lang.String java.io.File.path accessible: module java.base does not "opens java.io" to unnamed module @26c4a53

The problem is I have already added the required path variables as follows. So, how can I get the above error? Does anybody know how to resolve this issue, please?

Screenshot of the powershell output for checking path variables:

enter image description here

I try to build a ReactNative app using ReactNative CLI following the steps in their documentation: Link for the documentation

After downloading the initializing the App I tried to run the app:

  1. npx react-native start - to start the metro bundler and it's successfully launched.
  2. npx react-native run-android - to start the application on the android emulator but failed to build.

It gave the following error message:

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081 Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01 Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01

Execution failed for task ':app:processDebugMainManifest'.

Unable to make field private final java.lang.String java.io.File.path accessible: module java.base does not "opens java.io" to unnamed module @26c4a53

The problem is I have already added the required path variables as follows. So, how can I get the above error? Does anybody know how to resolve this issue, please?

Screenshot of the powershell output for checking 'User variables':

enter image description here

Source Link
Pawara Siriwardhane
  • 2.1k
  • 12
  • 32
  • 44

Execution failed for task ':app:processDebugMainManifest'. in ReactNative CLI

I try to build a ReactNative app using ReactNative CLI following the steps in their documentation: Link for the documentation

After downloading the initializing the App I tried to run the app:

  1. npx react-native start - to start the metro bundler and it's successfully launched.
  2. npx react-native run-android - to start the application on the android emulator but failed to build.

It gave the following error message:

error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup. Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081 Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01 Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01

Execution failed for task ':app:processDebugMainManifest'.

Unable to make field private final java.lang.String java.io.File.path accessible: module java.base does not "opens java.io" to unnamed module @26c4a53

The problem is I have already added the required path variables as follows. So, how can I get the above error? Does anybody know how to resolve this issue, please?

Screenshot of the powershell output for checking path variables:

enter image description here