Could not HEAD 'https://dl.bintray.com/umsdk/release/cn/rongcloud/sdk/im_lib/4.0.3.15/im_lib-4.0.3.15.pom'. Received status code 403 from server: Forbidden
Disable Gradle 'offline mode' and sync project
 

问题产生的原因是 第三方库的meven仓库变了

解决方案替换仓库地址

allprojects {
    repositories {
        google()
        jcenter()
        mavenLocal()
        maven {
            // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
            url("$rootDir/../node_modules/react-native/android")
        }
        maven {
            // Android JSC is installed from npm
            url("$rootDir/../node_modules/jsc-android/dist")
        }

        //

        maven { url 'https://maven.aliyun.com/repository/google' }
        maven { url 'https://maven.aliyun.com/repository/jcenter' }
        maven { url "https://jitpack.io" }

        maven { url 'https://dl.bintray.com/umsdk/release' }        //友盟依赖

        //https://maven.rongcloud.cn/repository/maven-releases/
        maven {url  "https://dl.bintray.com/rongcloud/maven"}       //这个已经不存在了融云依赖
//        maven {url  "https://maven.rongcloud.cn/repository/maven-releases/"}       //新的融云meven仓库地址

        maven {url "http://kochava.bintray.com/maven"}              //kochava依赖

//        maven { url "http://nexus2.tingyun.com/nexus/content/repositories/snapshots/" } //听云依赖
//        maven {
//            url 'https://maven.google.com/'
//            name 'Google'
//        }
    }
}