MacOS环境下运行React Native Android项目Gradle编译报错求助

Hey there! Let's get this Gradle error sorted out for you. That "major version 61" error is a super common Java/Gradle compatibility hiccup—here's what's going on and how to fix it:

What's Causing This? #

Class file major version 61 corresponds to Java 17, and your current Gradle version doesn't support it. Gradle has strict compatibility rules with Java versions; older Gradle releases can't handle newer Java runtime files, which is exactly what's happening here.

Solution 1: Downgrade Java to a Version Supported by Your Gradle #

If you're using an older React Native version (pre-0.70) or haven't updated Gradle yet, this is the most straightforward fix:

• First, check your current Java version:

  java -version
  

• Install Java 11 (it's a stable, widely supported version for most React Native projects pre-0.70)
• Switch your system's Java environment to use Java 11:
  • On macOS/Linux: Set the JAVA_HOME environment variable temporarily with:

    export JAVA_HOME=/path/to/your/java11/installation
    

    (Or use a version manager like sdkman to switch permanently for all projects)
  • On Windows: Update the JAVA_HOME system environment variable to point to your Java 11 installation folder
• Run yarn android again—this should resolve the compatibility issue right away

Solution 2: Upgrade Gradle to Support Java 17 #

If you want to keep using Java 17 (perfect for newer React Native versions like 0.70+), you'll need to upgrade your Gradle setup:

1. Open android/gradle/wrapper/gradle-wrapper.properties
2. Update the distributionUrl to a Gradle version that supports Java 17 (Gradle 7.3 or later works great). For example:

   distributionUrl=https\://services.gradle.org/distributions/gradle-7.5-all.zip
   

3. Open android/build.gradle and update the Android Gradle Plugin to match your new Gradle version. For Gradle 7.5, use plugin version 7.4.2:

   dependencies {
       classpath("com.android.tools.build:gradle:7.4.2")
       // ... keep your other dependencies here
   }
   

4. Let Gradle sync the project (it'll download the new version automatically), then run yarn android again

Quick Check: React Native Version Compatibility #

Just a heads-up to make sure your setup aligns with your RN version:

• React Native 0.70+: Supports Java 17 and requires Gradle 7.3+
• React Native 0.68-0.69: Works best with Java 11 and Gradle 7.x
• Older RN versions: Stick to Java 8/11 and their matching Gradle versions

内容的提问来源于stack exchange，提问作者David Odinaka Enyoghasim