任务“:app:CompiledBugJavaWithJavaC”的执行失败。针对Android的React本机应用程序

我正试图从我的React本机应用程序启动android emulator,但它引发以下错误,并且emulator无法在我的MAC系统中启动。

错误为

    Configure project :app
     WARNING: Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.
     It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html

     Configure project :react-native-app
     WARNING: Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.
     It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html
     WARNING: Configuration 'testCompile' is obsolete and has been replaced with 'testImplementation' and 'testApi'.
     It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html
    WARNING: Configuration 'testApi' is obsolete and has been replaced with 'testImplementation'.
     It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html

      Configure project :react-native-version-number
     WARNING: Configuration 'compile' is obsolete and has been replaced with 'implementation' and 'api'.
     It will be removed at the end of 2018. For more information see: http://d.android.com/r/tools/update-dependency-configurations.html
     WARNING: The specified Android SDK Build Tools version (23.0.1) is ignored, as it is below the minimum supported version (27.0.3) for
 Android Gradle Plugin 3.1.4.
     Android SDK Build Tools 27.0.3 will be used.
     To suppress this warning, remove "buildToolsVersion '23.0.1'" from your build.gradle file, as each version of the Android Gradle Plugin
 now has a default version of the build tools.

     Download https://dl.google.com/dl/android/maven2/com/android/support/multidex/1.0.2/multidex-1.0.2.pom
     Download https://dl.google.com/dl/android/maven2/com/android/support/multidex/1.0.2/multidex-1.0.2.aar

      Task :app:compileDebugJavaWithJavac FAILED
     /Users/anilkumar/Documents/projectName/android/app/src/main/java/com/projectName/MainApplication.java:19:
 error: cannot find symbol
           return BuildConfig.DEBUG;
                  ^
       symbol: variable BuildConfig
     1 error



My build.gradle file

//顶层生成文件,您可以在其中添加所有子项目/模块通用的配置选项。

    buildscript {
        ext {
            buildToolsVersion = "27.0.3"
            minSdkVersion = 16
            compileSdkVersion = 27
            targetSdkVersion = 26
            supportLibVersion = "27.1.1"
        }
        repositories {
            google()
            jcenter()
        }
        dependencies {
            classpath 'com.android.tools.build:gradle:3.1.4'

            // NOTE: Do not place your application dependencies here; they belong
            // in the individual module build.gradle files
        }
    }

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


    task wrapper(type: Wrapper) {
        gradleVersion = '4.4'
        distributionUrl = distributionUrl.replace("bin", "all")
    }

我是个新来的土生土长的人,有人能建议我如何解决这个问题吗?