我相信所有玩react-native的人最难受瞬间就报错，这玩意真是折磨人，刚一下载就当 yarn android或者npx react-native run android  的.gradle 特别慢，导致下载失败， 然后就报错，我就很苦恼，看了大量的帖子，也无济于事 ，好了 ，废话不多解决方案在下面

 我们在要找个东西位置 

注意: 如果不配置该属性,则默认的目录为 C:\Users\你自己电脑用户名/.gradle

C:\Users\EDZ\.gradle

 在该目录中建立 init.gradle

 内容为

allprojects{
    repositories {
        def ALIYUN_REPOSITORY_URL = 'https://maven.aliyun.com/repository/central/'
        def ALIYUN_JCENTER_URL = 'https://maven.aliyun.com/repository/public/'
        all { ArtifactRepository repo ->
            if(repo instanceof MavenArtifactRepository){
                def url = repo.url.toString()
                if (url.startsWith('https://repo1.maven.org/maven2') || url.startsWith('http://repo1.maven.org/maven2')) {
                    project.logger.lifecycle "Repository ${repo.url} replaced by $ALIYUN_REPOSITORY_URL."
                    remove repo
                }
                if (url.startsWith('https://jcenter.bintray.com/') || url.startsWith('http://jcenter.bintray.com/')) {
                    project.logger.lifecycle "Repository ${repo.url} replaced by $ALIYUN_JCENTER_URL."
                    remove repo
                }
            }
        }
        maven {
            url ALIYUN_REPOSITORY_URL
            url ALIYUN_JCENTER_URL
			url 'https://maven.aliyun.com/repository/google/'
			url 'https://maven.aliyun.com/repository/gradle-plugin/'
        }
    }
 
 
    buildscript{
        repositories {
            def ALIYUN_REPOSITORY_URL = 'https://maven.aliyun.com/repository/central/'
            def ALIYUN_JCENTER_URL = 'https://maven.aliyun.com/repository/public/'
            all { ArtifactRepository repo ->
                if(repo instanceof MavenArtifactRepository){
                    def url = repo.url.toString()
                    if (url.startsWith('https://repo1.maven.org/maven2') || url.startsWith('http://repo1.maven.org/maven2')) {
                        project.logger.lifecycle "Repository ${repo.url} replaced by $ALIYUN_REPOSITORY_URL."
                        remove repo
                    }
                    if (url.startsWith('https://jcenter.bintray.com/') || url.startsWith('http://jcenter.bintray.com/')) {
                        project.logger.lifecycle "Repository ${repo.url} replaced by $ALIYUN_JCENTER_URL."
                        remove repo
                    }
                }
            }
            maven {
                url ALIYUN_REPOSITORY_URL
                url ALIYUN_JCENTER_URL
				url 'https://maven.aliyun.com/repository/google/'
				url 'https://maven.aliyun.com/repository/gradle-plugin/'
            }
        }
    }
}

 这样我们就完美解决下载慢报错的问题了

当前前提是你能够搭建好环境

好了。完美完结。完结撒花