安装react-native-camera遇Gradle同步失败：找不到google()方法

Hey there, let's work through this Gradle sync error you're hitting with react-native-camera. That error usually boils down to an outdated Gradle setup that doesn't support the google() repository shortcut—here's how to fix it step by step:

1. Upgrade Gradle and Android Build Plugin #

The google() method was introduced in Gradle 4.1+ and Android Plugin for Gradle 3.0.0+. Your current setup is likely using older versions that don't recognize this method.

Update root-level build.gradle #

Open your project's root build.gradle file and update the buildscript and allprojects sections:

buildscript {
    repositories {
        google() // Add this first
        jcenter()
    }
    dependencies {
        // Use a plugin version compatible with your React Native version (3.2.1 works for most RN 0.50+ setups)
        classpath 'com.android.tools.build:gradle:3.2.1'
    }
}

allprojects {
    repositories {
        mavenLocal()
        google() // Include google() here too
        jcenter()
        maven { url "https://jitpack.io" }
        maven {
            url "$rootDir/../node_modules/react-native/android"
        }
    }
}

Update Gradle wrapper version #

Navigate to android/gradle/wrapper/gradle-wrapper.properties and set the distribution URL to match your plugin version:

distributionUrl=https\://services.gradle.org/distributions/gradle-4.10.1-all.zip

This version pairs perfectly with the 3.2.1 Android plugin we specified.

2. Verify react-native-camera Configuration #

Since you already started manual linking, double-check these details:

• In android/settings.gradle, ensure you have:

  include ':react-native-camera'
  project(':react-native-camera').projectDir = new File(rootProject.projectDir, '../node_modules/react-native-camera/android')
  

• In android/app/build.gradle, confirm the ExifInterface dependency is set to 27.+:

  dependencies {
      // ... other dependencies
      compile 'com.android.support:exifinterface:27.+'
  }
  

3. Clean and Rebuild #

Finally, clear any cached build files to avoid leftover issues:

1. Open a terminal, navigate to your project's android folder
2. Run ./gradlew clean
3. Restart Android Studio and trigger a Gradle sync

This should resolve the google() method error, as your build setup will now support the modern repository syntax required by react-native-camera.

内容的提问来源于stack exchange，提问作者Green Eagle