Create a project with the "npx react-native init AwesomeProject" command, and then execute the "yarn android" command to report an error(I didn’t make any code changes)
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'AwesomeProject'.
> Could not determine the dependencies of null.
> Could not resolve all task dependencies for configuration ':classpath'.
> Could not find com.android.tools.build:gradle:.
Required by:
project :
> Could not resolve com.facebook.react:react-native-gradle-plugin.
Required by:
project :
> No matching variant of project :gradle-plugin was found. The consumer was configured to find a
library for use during runtime, compatible with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '8.0.1' but:
- Variant 'apiElements' capability com.facebook.react:react-native-gradle-plugin:unspecified
declares a library, packaged as a jar, and its dependencies declared externally:
- Incompatible because this component declares a component for use during compile-time, compatible with Java 11 and the consumer needed a component for use during runtime, compatible with Java 8
- Other compatible attribute:
- Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1')
- Variant 'mainSourceElements' capability com.facebook.react:react-native-gradle-plugin:unspecified declares a component, and its dependencies declared externally:
- Incompatible because this component declares a component of category 'verification' and the consumer needed a library
- Other compatible attributes:
- Doesn't say anything about its target Java version (required compatibility with Java 8)
- Doesn't say anything about its elements (required them packaged as a jar)
- Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1')
- Doesn't say anything about its usage (required runtime)
- Variant 'runtimeElements' capability com.facebook.react:react-native-gradle-plugin:unspecified declares a library for use during runtime, packaged as a jar, and its dependencies declared externally:
- Incompatible because this component declares a component, compatible with Java 11 and the consumer needed a component, compatible with Java 8
- Other compatible attribute:
- Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1')
- Variant 'testResultsElementsForTest' capability com.facebook.react:react-native-gradle-plugin:unspecified:
- Incompatible because this component declares a component of category 'verification' and the consumer needed a library
- Other compatible attributes:
- Doesn't say anything about how its dependencies are found (required its dependencies declared externally)
- Doesn't say anything about its target Java version (required compatibility with Java 8)
- Doesn't say anything about its elements (required them packaged as a jar)
- Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1')
- Doesn't say anything about its usage (required runtime)
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 2s
error Failed to install the app. Command failed with exit code 1: gradlew.bat tasks FAILURE: Build failed
with an exception. * What went wrong: A problem occurred configuring root project 'AwesomeProject'. > Could not determine the dependencies of null. > Could not resolve all task dependencies for configuration ':classpath'. > Could not find com.android.tools.build:gradle:. Required by: project : > Could not resolve com.facebook.react:react-native-gradle-plugin. Required by: project : > No matching variant of project :gradle-plugin was found. The consumer was configured to find a library for use during runtime, compatible with
Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '8.0.1' but: - Variant 'apiElements' capability com.facebook.react:react-native-gradle-plugin:unspecified declares a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component for use during compile-time, compatible with
Java 11 and the consumer needed a component for use during runtime, compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1') - Variant 'mainSourceElements' capability com.facebook.react:react-native-gradle-plugin:unspecified declares a component, and its dependencies declared externally: - Incompatible because this component declares a component of category 'verification' and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1') - Doesn't say anything about its usage (required runtime) - Variant 'runtimeElements' capability com.facebook.react:react-native-gradle-plugin:unspecified declares a library for use during runtime, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component, compatible with Java 11 and the consumer needed a component, compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1') - Variant 'testResultsElementsForTest' capability com.facebook.react:react-native-gradle-plugin:unspecified:
- Incompatible because this component declares a component of category 'verification' and the consumer needed a library - Other compatible attributes: - Doesn't say anything about how its dependencies are found (required its dependencies declared externally) - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '8.0.1') - Doesn't say anything about its usage (required runtime) * Try: > Run with --stacktrace option to get the stack trace. > Run with --info or --debug option to get more log output. > Run with --scan to get full insights. * Get more help at
https://help.gradle.org BUILD FAILED in 2s.
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
But checking with react native doctor there is no error
yarn run v1.13.0
$ react-native doctor
Common
✓ Node.js – Required to execute JavaScript code
✓ yarn – Required to install NPM dependencies
Android
✓ Adb – Required to verify if the android device is attached correctly
✓ JDK – Required to compile Java code
✓ Android Studio – Required for building and installing your app on Android
✓ Android SDK – Required for building and installing your app on Android
✓ ANDROID_HOME – Environment variable that points to your Android SDK installation
Errors: 0
Warnings: 0
Done in 6.41s.
I re-executed the yarn command, trying to fix this error, but without success
2
Answers
tries to do everything with npm:
npm install -g react-native-cli.
expo init newProject
cd new Project
and just try:
npm start
Try to set environment variable
JAVA_HOME
to 11 jdk (e.g.C:Program FilesJavajdk-11
) and restart computer. I had same problem, and I fixed it with this. (Also I installed Android SDK Build-Tools 30.0.2)