Received status code 502 from server: Bad Gateway
Problem
* What went wrong: Could not resolve all files for configuration ':app:debugCompileClasspath'. > Could not resolve com.facebook.react:react-native:+. Required by: project :app project :app > project :react-native-snackbar project :app > project :react-native-settings project :app > project :react-native-location-switch project :app > project :react-native-i18n > Failed to list versions for com.facebook.react:react-native. > Unable to load Maven meta-data from https://jcenter.bintray.com/com/facebook/react/react-native/maven-metadata.xml. > Could not HEAD 'https://jcenter.bintray.com/com/facebook/react/react-native/maven-metadata.xml'. Received status code 502 from server: Bad Gateway This is due to bintray is down https://status.bintray.com/ let's have a cup of coffee
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1 Fix
Switch to Maven Central for React Native Dependencies
The error is caused by the inability to resolve dependencies from JCenter, which is currently down. The project relies on the React Native library hosted on JCenter, leading to a 502 Bad Gateway error when attempting to access Maven metadata.
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- 1
Update build.gradle to use Maven Central
Modify your project's build.gradle file to include Maven Central as the primary repository for resolving dependencies. This will allow the project to fetch React Native and its dependencies from a reliable source.
groovyrepositories { google() mavenCentral() // jcenter() is deprecated and should be removed } - 2
Specify React Native Version
Instead of using a dynamic version for React Native, specify a stable version in your app's build.gradle file. This avoids potential issues with version resolution and ensures compatibility.
groovyimplementation 'com.facebook.react:react-native:0.64.2' // replace with the desired version - 3
Clear Gradle Cache
Clear the Gradle cache to remove any corrupted or outdated files that may interfere with the dependency resolution process. This ensures that the next build fetches fresh copies of the dependencies.
bashgradle cleanBuildCache - 4
Sync Project with Gradle Files
After making the changes, sync the project with Gradle files in Android Studio to apply the updates and resolve dependencies.
noneClick on 'Sync Now' in the notification bar after making changes to build.gradle. - 5
Rebuild the Project
Finally, rebuild the project to ensure that all dependencies are correctly resolved and compiled. This will confirm that the changes have taken effect.
bashgradle build
Validation
To confirm the fix worked, attempt to build the project again. If the build completes successfully without any dependency resolution errors, the issue is resolved. Additionally, check the Gradle console for any warnings or errors related to dependency resolution.
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Submitted by
Alex Chen
2450 rep