我在启动我的react native应用程序时收到“compileSdkVersion is not specified. Please add it to build.gradle”错误。我已经在build.gradle中添加了compileSdkVersion。我可以知道为什么我仍然收到该错误。我已经尝试了此门户中提供的类似问题的建议。它不起作用。
我的build.grade（来自gradle文件夹）：

// Top-level build file where you can add configuration options common to all sub-projects/modules.

apply plugin: 'com.android.application'
apply plugin: 'com.google.firebase.appdistribution'
buildscript {
    ext {
        buildToolsVersion = "31.0.0"
        minSdkVersion = 21
        compileSdkVersion = 31
        targetSdkVersion = 31

        if (System.properties['os.arch'] == "aarch64") {
            // For M1 Users we need to use the NDK 24 which added support for aarch64
            ndkVersion = "24.0.8215888"
        } else {
            // Otherwise we default to the side-by-side NDK version from AGP.
            ndkVersion = "21.4.7075529"
        }
    }
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        classpath("com.android.tools.build:gradle:7.2.1")
        classpath("com.facebook.react:react-native-gradle-plugin")
        classpath("de.undercouch:gradle-download-task:5.0.1")
        classpath "com.google.firebase:firebase-appdistribution-gradle:1.1.0"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        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")
        }
        mavenCentral {
            // We don't want to fetch react-native from Maven Central as there are
            // older versions over there.
            content {
                excludeGroup "com.facebook.react"
            }
        }
        google()
        maven { url 'https://www.jitpack.io' }
    }
}

dependencies {
  // Import the Firebase BoM
  implementation platform('com.google.firebase:firebase-bom:31.3.0')

  // TODO: Add the dependencies for Firebase products you want to use
  // When using the BoM, don't specify versions in Firebase dependencies
  // https://firebase.google.com/docs/android/setup#available-libraries
}

我的另一个build.grade（从apps文件夹）：

apply plugin: "com.android.application"

import com.android.build.OutputFile
import org.apache.tools.ant.taskdefs.condition.Os


project.ext.react = [
    enableHermes: true,  // clean and rebuild if changing
]

apply from: "../../node_modules/react-native/react.gradle"

/**
 * Set this to true to create two separate APKs instead of one:
 *   - An APK that only works on ARM devices
 *   - An APK that only works on x86 devices
 * The advantage is the size of the APK is reduced by about 4MB.
 * Upload all the APKs to the Play Store and people will download
 * the correct one based on the CPU architecture of their device.
 */
def enableSeparateBuildPerCPUArchitecture = false

/**
 * Run Proguard to shrink the Java bytecode in release builds.
 */
def enableProguardInReleaseBuilds = false

/**
 * The preferred build flavor of JavaScriptCore.
 *
 * For example, to use the international variant, you can use:
 * `def jscFlavor = 'org.webkit:android-jsc-intl:+'`
 *
 * The international variant includes ICU i18n library and necessary data
 * allowing to use e.g. `Date.toLocaleString` and `String.localeCompare` that
 * give correct results when using with locales other than en-US.  Note that
 * this variant is about 6MiB larger per architecture than default.
 */
def jscFlavor = 'org.webkit:android-jsc:+'

/**
 * Whether to enable the Hermes VM.
 *
 * This should be set on project.ext.react and that value will be read here. If it is not set
 * on project.ext.react, JavaScript will not be compiled to Hermes Bytecode
 * and the benefits of using Hermes will therefore be sharply reduced.
 */
def enableHermes = project.ext.react.get("enableHermes", false);

/**
 * Architectures to build native code for.
 */
def reactNativeArchitectures() {
    def value = project.getProperties().get("reactNativeArchitectures")
    return value ? value.split(",") : ["armeabi-v7a", "x86", "x86_64", "arm64-v8a"]
}

android {
    

    
    
    defaultConfig {
        applicationId "com.doctorapp"
        minSdkVersion rootProject.ext.minSdkVersion
        targetSdkVersion rootProject.ext.targetSdkVersion
        compileSdkVersion rootProject.ext.compileSdkVersion
        ndkVersion rootProject.ext.ndkVersion
        versionCode 1
        versionName "1.0"
        buildConfigField "boolean", "IS_NEW_ARCHITECTURE_ENABLED", isNewArchitectureEnabled().toString()

        if (isNewArchitectureEnabled()) {
            // We configure the CMake build only if you decide to opt-in for the New Architecture.
            externalNativeBuild {
                cmake {
                    arguments "-DPROJECT_BUILD_DIR=$buildDir",
                        "-DREACT_ANDROID_DIR=$rootDir/../node_modules/react-native/ReactAndroid",
                        "-DREACT_ANDROID_BUILD_DIR=$rootDir/../node_modules/react-native/ReactAndroid/build",
                        "-DNODE_MODULES_DIR=$rootDir/../node_modules",
                        "-DANDROID_STL=c++_shared"
                }
            }
            if (!enableSeparateBuildPerCPUArchitecture) {
                ndk {
                    abiFilters (*reactNativeArchitectures())
                }
            }
        }
    }

    if (isNewArchitectureEnabled()) {
        // We configure the NDK build only if you decide to opt-in for the New Architecture.
        externalNativeBuild {
            cmake {
                path "$projectDir/src/main/jni/CMakeLists.txt"
            }
        }
        def reactAndroidProjectDir = project(':ReactAndroid').projectDir
        def packageReactNdkDebugLibs = tasks.register("packageReactNdkDebugLibs", Copy) {
            dependsOn(":ReactAndroid:packageReactNdkDebugLibsForBuck")
            from("$reactAndroidProjectDir/src/main/jni/prebuilt/lib")
            into("$buildDir/react-ndk/exported")
        }
        def packageReactNdkReleaseLibs = tasks.register("packageReactNdkReleaseLibs", Copy) {
            dependsOn(":ReactAndroid:packageReactNdkReleaseLibsForBuck")
            from("$reactAndroidProjectDir/src/main/jni/prebuilt/lib")
            into("$buildDir/react-ndk/exported")
        }
        afterEvaluate {
            // If you wish to add a custom TurboModule or component locally,
            // you should uncomment this line.
            // preBuild.dependsOn("generateCodegenArtifactsFromSchema")
            preDebugBuild.dependsOn(packageReactNdkDebugLibs)
            preReleaseBuild.dependsOn(packageReactNdkReleaseLibs)

            // Due to a bug inside AGP, we have to explicitly set a dependency
            // between configureCMakeDebug* tasks and the preBuild tasks.
            // This can be removed once this is solved: https://issuetracker.google.com/issues/207403732
            configureCMakeRelWithDebInfo.dependsOn(preReleaseBuild)
            configureCMakeDebug.dependsOn(preDebugBuild)
            reactNativeArchitectures().each { architecture ->
                tasks.findByName("configureCMakeDebug[${architecture}]")?.configure {
                    dependsOn("preDebugBuild")
                }
                tasks.findByName("configureCMakeRelWithDebInfo[${architecture}]")?.configure {
                    dependsOn("preReleaseBuild")
                }
            }
        }
    }

    splits {
        abi {
            reset()
            enable enableSeparateBuildPerCPUArchitecture
            universalApk false  // If true, also generate a universal APK
            include (*reactNativeArchitectures())
        }
    }
    signingConfigs {
        debug {
            storeFile file('debug.keystore')
            storePassword 'android'
            keyAlias 'androiddebugkey'
            keyPassword 'android'
        }
    }
    buildTypes {
        debug {
            signingConfig signingConfigs.debug
        }
        release {
            // Caution! In production, you need to generate your own keystore file.
            // see https://reactnative.dev/docs/signed-apk-android.
            signingConfig signingConfigs.debug
            minifyEnabled enableProguardInReleaseBuilds
            proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
        }
    }

    // applicationVariants are e.g. debug, release
    applicationVariants.all { variant ->
        variant.outputs.each { output ->
            // For each separate APK per architecture, set a unique version code as described here:
            // https://developer.android.com/studio/build/configure-apk-splits.html
            // Example: versionCode 1 will generate 1001 for armeabi-v7a, 1002 for x86, etc.
            def versionCodes = ["armeabi-v7a": 1, "x86": 2, "arm64-v8a": 3, "x86_64": 4]
            def abi = output.getFilter(OutputFile.ABI)
            if (abi != null) {  // null for the universal-debug, universal-release variants
                output.versionCodeOverride =
                        defaultConfig.versionCode * 1000 + versionCodes.get(abi)
            }

        }
    }
}

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])

    //noinspection GradleDynamicVersion
    implementation "com.facebook.react:react-native:+"  // From node_modules

    implementation "androidx.swiperefreshlayout:swiperefreshlayout:1.0.0"

    debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}") {
        exclude group:'com.facebook.fbjni'
    }

    debugImplementation("com.facebook.flipper:flipper-network-plugin:${FLIPPER_VERSION}") {
        exclude group:'com.facebook.flipper'
        exclude group:'com.squareup.okhttp3', module:'okhttp'
    }

    debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}") {
        exclude group:'com.facebook.flipper'
    }

    if (enableHermes) {
        //noinspection GradleDynamicVersion
        implementation("com.facebook.react:hermes-engine:+") { // From node_modules
            exclude group:'com.facebook.fbjni'
        }
    } else {
        implementation jscFlavor
    }
}

if (isNewArchitectureEnabled()) {
    // If new architecture is enabled, we let you build RN from source
    // Otherwise we fallback to a prebuilt .aar bundled in the NPM package.
    // This will be applied to all the imported transtitive dependency.
    configurations.all {
        resolutionStrategy.dependencySubstitution {
            substitute(module("com.facebook.react:react-native"))
                    .using(project(":ReactAndroid"))
                    .because("On New Architecture we're building React Native from source")
            substitute(module("com.facebook.react:hermes-engine"))
                    .using(project(":ReactAndroid:hermes-engine"))
                    .because("On New Architecture we're building Hermes from source")
        }
    }
}

// Run this once to be able to run the application with BUCK
// puts all compile dependencies into folder libs for BUCK to use
task copyDownloadableDepsToLibs(type: Copy) {
    from configurations.implementation
    into 'libs'
}

apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)

def isNewArchitectureEnabled() {
    // To opt-in for the New Architecture, you can either:
    // - Set `newArchEnabled` to true inside the `gradle.properties` file
    // - Invoke gradle with `-newArchEnabled=true`
    // - Set an environment variable `ORG_GRADLE_PROJECT_newArchEnabled=true`
    return project.hasProperty("newArchEnabled") && project.newArchEnabled == "true"
}