说我花了大约 32 个小时是轻描淡写的。我一直在尝试在由 Expo SDK 44 提供支持的 React Native 项目中启用 Kotlin。

我一直在尝试我在互联网上能找到的一切，但它总是在 EAS 的 Gradle 阶段出现错误（使用 eas build --profile 开发 --platform android 运行它）。

以下是我的配置：

为了简洁起见，我省略了代码。如果您需要更多背景信息，请告诉我

app\android\build.gradle：

buildscript {
    ext {
        buildToolsVersion = "30.0.2"
        minSdkVersion = 21
        compileSdkVersion = 31
        targetSdkVersion = 31
        kotlinVersion = "1.4.11"
    }
    repositories {
        google()
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath("com.android.tools.build:gradle:4.1.0")
        classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion")
       
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

apply plugin: "kotlin-android"
apply plugin: "kotlin-android-extensions"

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    //noinspection GradleDynamicVersion
    implementation "com.facebook.react:react-native:+"  // From node_modules
    implementation project(':react-native-plaid-link-sdk')

    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.3.3'
    implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.3.3'
    implementation 'androidx.core:core-ktx:1.1.0'
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlinVersion"

// Other comed omitted
}

这是我的包.json

{
    "name": "@pana/app",
    "version": "22.0220",
    "private": true,
    "scripts": {
        "start": "expo start --dev-client",
        "android": "expo run:android",
        "ios": "expo run:ios",
        "eject": "expo eject",
        "extract": "lingui extract",
        "compile": "lingui compile",
        "lint": "eslint src/** --ext .ts,.tsx",
        "lint:fix": "yarn lint --fix",
        "test": "jest",
        "graphql:generate": "graphql-codegen --config codegen.yml",
        "build": ""
    },
    "dependencies": {
        "@apollo/client": "^3.5.10",
        "@apollo/link-context": "^2.0.0-beta.3",
        "@expo/react-native-action-sheet": "^3.13.0",
        "@intercom/intercom-react-native": "^3.0.0",
        "@lingui/react": "^3.13.2",
        "@onfido/react-native-sdk": "^5.1.0",
        "@react-native-async-storage/async-storage": "~1.15.0",
        "@react-native-community/datetimepicker": "4.0.0",
        "@react-navigation/bottom-tabs": "^6.3.1",
        "@react-navigation/native": "^6.0.8",
        "@react-navigation/stack": "^6.1.1",
        "@reduxjs/toolkit": "^1.8.0",
        "@segment/analytics-react-native": "^2.1.12",
        "@segment/sovran-react-native": "^0.2.6",
        "@sentry/react-native": "^3.2.13",
        "axios": "^0.25.0",
        "dayjs": "^1.10.8",
        "expo": "~44.0.0",
        "expo-application": "~4.0.1",
        "expo-auth-session": "~3.5.0",
        "expo-cellular": "~4.1.0",
        "expo-clipboard": "~2.1.0",
        "expo-constants": "~13.0.1",
        "expo-crypto": "~10.1.1",
        "expo-dev-client": "~0.8.5",
        "expo-device": "~4.1.0",
        "expo-document-picker": "~10.1.3",
        "expo-image-loader": "~3.1.0",
        "expo-image-picker": "~12.0.2",
        "expo-linear-gradient": "~11.0.3",
        "expo-local-authentication": "~12.1.0",
        "expo-random": "~12.1.1",
        "expo-secure-store": "~11.1.0",
        "expo-splash-screen": "~0.14.1",
        "expo-status-bar": "~1.2.0",
        "expo-updates": "~0.11.7",
        "make-plural": "^7.1.0",
        "react": "17.0.1",
        "react-dom": "17.0.1",
        "react-native": "0.64.3",
        "react-native-animated-progress": "^1.0.2",
        "react-native-country-picker-modal": "^2.0.0",
        "react-native-dotenv": "^3.3.1",
        "react-native-gesture-handler": "~2.1.0",
        "react-native-keyboard-aware-scroll-view": "^0.9.5",
        "react-native-phone-number-input": "^2.1.0",
        "react-native-plaid-link-sdk": "^7.4.0",
        "react-native-safe-area-context": "3.3.2",
        "react-native-screens": "~3.10.1",
        "react-native-shimmer-placeholder": "^2.0.8",
        "react-native-svg": "12.1.1",
        "react-native-uuid": "^2.0.1",
        "react-native-web": "0.17.1",
        "react-native-webview": "11.15.0",
        "react-redux": "^7.2.6",
        "semver-compare": "^1.0.0",
        "sentry-expo": "^4.0.0",
        "styled-components": "5.2.0",
        "styled-system": "^5.1.5",
        "validate.js": "^0.13.1"
    },
    "devDependencies": {
        "@babel/core": "^7.12.9",
        "@graphql-codegen/cli": "2.6.2",
        "@graphql-codegen/typescript": "2.4.8",
        "@graphql-codegen/typescript-operations": "2.3.5",
        "@graphql-codegen/typescript-react-apollo": "3.2.11",
        "@lingui/cli": "^3.13.2",
        "@lingui/macro": "^3.13.2",
        "@react-native-community/eslint-config": "^3.0.1",
        "@types/jest": "^27.4.0",
        "@types/react": "~17.0.21",
        "@types/react-native": "~0.64.12",
        "@types/react-native-animated-progress": "^1.0.0",
        "@types/react-native-dotenv": "^0.2.0",
        "@types/react-redux": "^7.1.23",
        "@types/semver-compare": "^1.0.1",
        "@types/styled-components": "^5.1.24",
        "@types/styled-components-react-native": "5.1.0",
        "@types/styled-system": "^5.1.15",
        "@typescript-eslint/eslint-plugin": "^5.10.2",
        "@typescript-eslint/parser": "^5.10.2",
        "eslint": "^8.8.0",
        "eslint-config-airbnb": "^19.0.4",
        "eslint-config-prettier": "^8.3.0",
        "eslint-import-resolver-typescript": "^2.5.0",
        "eslint-plugin-flowtype": "^8.0.3",
        "eslint-plugin-import": "^2.25.4",
        "eslint-plugin-jest": "^26.1.0",
        "eslint-plugin-jsx-a11y": "^6.5.1",
        "eslint-plugin-prettier": "^4.0.0",
        "eslint-plugin-react": "^7.28.0",
        "eslint-plugin-react-hooks": "^4.3.0",
        "graphql": "^16.3.0",
        "install-peers": "^1.0.3",
        "jest": "^27.5.0",
        "prettier": "^2.5.1",
        "react-native-config": "^1.4.5",
        "react-native-svg-transformer": "^1.0.0",
        "remote-redux-devtools": "^0.5.16",
        "ts-jest": "^27.1.3",
        "typescript": "~4.3.5"
    },
    "jest": {
        "preset": "react-native",
        "moduleFileExtensions": [
            "ts",
            "tsx",
            "js",
            "jsx",
            "json",
            "node"
        ]
    },
    "resolutions": {
        "react-devtools-core": "4.14.0",
        "@types/react": "17.0.21",
        "@types/react-dom": "17.0.01"
    }
}

这是我的文件夹结构：

Here's MyAppPackage.kt （android\app\src\main\java\com\pana\MyAppPackage.kt）

package com.pana // replace your-app-name with your app’s name

import android.view.View
import com.facebook.react.ReactPackage
import com.facebook.react.bridge.NativeModule
import com.facebook.react.bridge.ReactApplicationContext
import com.facebook.react.uimanager.ReactShadowNode
import com.facebook.react.uimanager.ViewManager

class MyAppPackage : ReactPackage {

    override fun createViewManagers(
        reactContext: ReactApplicationContext
    ): MutableList<ViewManager<View, ReactShadowNode<*>>> = mutableListOf()

    override fun createNativeModules(
        reactContext: ReactApplicationContext
    ): MutableList<NativeModule> = listOf(CalendarModule(reactContext)).toMutableList()


}

以下是我重新整理的一些 SO 资源：

• 错误----

以下是我研究过的一些资源：

• https://www.youtube.com/watch?v=wk_cR66AVXQ

以下是我尝试过的一些错误和修复：

我已经尝试最小地增加我当前的项目（请注意，对于对讲包，我必须将 compileSdkVersion 和 targetSdkVersion 设置为 31，并且正在成功构建）。我关注了这个视频，官方的 React Native 文档，以及使用 Android Studio 将 Kotlin 添加到现有应用程序中（手动方法）。

a. （android/build.gradle） 已添加 （Inside buildscript.ext） kotlin_version = '1.4.10' b. （android/build.gradle） 添加了（内部依赖项） 类路径 “org.jetbrains.kotlin：kotlin-gradle-plugin：$kotlin_version” c. （android/app/build.gradle） 添加（在文件顶部） 应用插件：“kotlin-android”

尝试编译：

[stderr] Note: Recompile with -Xlint:deprecation for details.
> Task :app:compileDebugKotlin FAILED w: Runtime JAR files in the classpath should have the same version. These files were found in the classpath:
    /home/expo/.gradle/caches/transforms-3/f47aaec93b5ce8275ab670559bc858c7/transformed/jetified-kotlin-stdlib-jdk8-1.5.31.jar (version 1.5)
    /home/expo/.gradle/caches/transforms-3/e30ac7ea6364b484c3bc3c923afeabd2/transformed/jetified-kotlin-stdlib-jdk7-1.5.31.jar (version 1.5)
    /home/expo/.gradle/caches/transforms-3/d9723caca13068e43e601371da49b5b2/transformed/jetified-kotlin-stdlib-1.6.10.jar (version 1.6)
    /home/expo/.gradle/caches/transforms-3/c5966235c8aa66a583bf2afcd9edd1b7/transformed/jetified-kotlin-stdlib-common-1.6.10.jar (version 1.6) w: Some runtime JAR files in the classpath have an incompatible version. Consider removing them from the classpath [stderr] e: /home/expo/.gradle/caches/transforms-3/c5966235c8aa66a583bf2afcd9edd1b7/transformed/jetified-kotlin-stdlib-common-1.6.10.jar!/META-INF/kotlin-stdlib-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.6.0, expected version is 1.4.0.

看到这一点，我进行了一些研究，并建议将 Kotlin 版本推送到 1.6.10：

Task :expo-dev-launcher:compileDebugKotlin
[stderr] Compilation with Kotlin compile daemon was not successful
[stderr] java.rmi.ServerException: RemoteException occurred in server thread; nested exception is: 
[stderr]    java.rmi.UnmarshalException: error unmarshalling arguments; nested exception is: 
[stderr]    java.io.InvalidClassException: org.jetbrains.kotlin.incremental.IncrementalModuleInfo; local class incompatible: stream classdesc serialVersionUID = 1, local class serialVersionUID = 0
[stderr]    at java.rmi/sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:391)
[stderr]    at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:200)
[stderr]    at java.rmi/sun.rmi.transport.Transport$1.run(Transport.java:197)
[stderr]    at java.base/java.security.AccessController.doPrivileged(Native Method)
[stderr]    at java.rmi/sun.rmi.transport.Transport.serviceCall(Transport.java:196)
[stderr]    at java.rmi/sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:562)
[stderr]    at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:796)
[stderr]    at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:677)
[stderr]    at java.base/java.security.AccessController.doPrivileged(Native Method)
[stderr]    at java.rmi/sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:676)
[stderr]    at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
[stderr]    at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
[stderr]    at java.base/java.lang.Thread.run(Thread.java:829)
[stderr]    at java.rmi/sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:303)
[stderr]    at java.rmi/sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:279)
[stderr]    at java.rmi/sun.rmi.server.UnicastRef.invoke(UnicastRef.java:164)

这导致我更新以运行世博会升级和世博会医生，看看是否有任何更新会起作用。这打开了潘多拉的盒子。升级到 expo SDK 45 有其自身的问题（显然我有一些冲突的包，会引发以下错误）：

[stderr] Note: /home/expo/workingdir/build/app/node_modules/@sentry/react-native/android/src/main/java/io/sentry/react/RNSentryModule.java uses or overrides a deprecated API.
[stderr] Note: Recompile with -Xlint:deprecation for details.
> Task :app:compileDebugJavaWithJavac FAILED
[stderr] /home/expo/workingdir/build/app/android/app/src/main/java/app/pana/MainApplication.java:6: error: package android.app does not exist
[stderr] import android.app.Application;
[stderr]                   ^
[stderr] /home/expo/workingdir/build/app/android/app/src/main/java/app/pana/MainApplication.java:7: error: package android.content does not exist
[stderr] import android.content.Context;
[stderr]                       ^
[stderr] /home/expo/workingdir/build/app/android/app/src/main/java/app/pana/MainApplication.java:8: error: package android.content.res does not exist
[stderr] import android.content.res.Configuration;
[stderr]                           ^
[stderr] /home/expo/workingdir/build/app/android/app/src/main/java/app/pana/MainApplication.java:10: error: package android.webkit does not exist
[stderr] import android.webkit.WebView;

还有其他版本在 expo-dev-client 中失败。我还知道 SDK 45 中的一个错误，即启用 Hermes 时会遇到问题。我们正在使用JSC。

只是为了防止这个问题变长，以下是我尝试过的其他事情：

一个。将 gradle-wrapper.properties 中的 distributionUrl 更改为更新的 gradle 版本。

b.更新和数学化org.jetbrains.kotlin：kotlin-gradle-plugin（在Android/build.gradle中），org.jetbrains.kotlin：kotlin-stdlib-jdk7（将其更改为JDK8，什么都没有），org.jetbrains.kotlinx：kotlinx-coroutines-core，org.jetbrains.kotlinx：kotlinx-coroutines-android，androidx.core：core-ktx以及相应的kotlin版本。

c. 在调试实现语句中添加了这些实现。

d. 研究了与 Kotlin 对应的 React Native 版本（不知道 Expo 的 SDK 44 版本 0.64 是否支持 Kotlin 1.6.10）。

e.已检查使用 Android Studio 是否存在语法错误。

f.冉冉干净。

g.还有其他事情...

有谁知道什么吗？世博会GitHub上似乎没有任何报道。