Question

我迁移到了较新的React Native，并将一些库更新为最新版本。一块我的project.json：

"@react-native-community/async-storage": "^1.4.1",
"@react-native-community/netinfo": "^3.1.1",
"babel-core": "^6.26.3",
"babel-loader": "^7.1.5",
"babel-preset-react-native": "^4.0.0",
"react": "16.8.6",
"react-native": "^0.59.8"

我在这里遇到这个问题：

D：\ myapp \ node_modules @ react-native-community \ netinfo \ android \ src \ main \ java \ com \ reactnativecommunity \ netinfo \ ConnectivityReceiver.java：12：错误：包android.support.v4.net不存在导入 android.support.v4.net.ConnectivityManagerCompat; ^ D：\ myapp \ node_modules @ react-native-community \ netinfo \ android \ src \ main \ java \ com \ reactnativecommunity \ netinfo \ ConnectivityReceiver.java：154：错误：找不到符号 ConnectivityManagerCompat.isActiveNetworkMetered（getConnectivityManager（））; ^符号：变量ConnectivityManagerCompat位置：类ConnectivityReceiver 2错误

gradle.properties

android.enableJetifier = true
android.useAndroidX=true

root gradle

ext {
    buildToolsVersion = "28.0.3"
    minSdkVersion = 21
    compileSdkVersion = 28
    targetSdkVersion = 28
    supportLibVersion="28.0.0"
}

渐变依赖项

dependencies {
    implementation project(':react-native-code-push')
    implementation project(':react-native-gesture-handler')
    implementation project(':react-native-webview')
    implementation project(':react-native-push-notification')
    implementation project(':@react-native-community_netinfo')
    implementation project(':@react-native-community_async-storage')
    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
    implementation 'com.google.firebase:firebase-messaging:+'
    implementation 'com.facebook.react:react-native:+'
}

Answer 1

那是因为您的SDK在更新到平台28时出现问题

打开android studio

打开SDK管理器

选中“显示软件包详细信息”

在程序包平台28下，勾选“ android的源代码”或我不记得的类似内容，但这是程序包28的源代码。单击“确定”下载它

重建以检查

希望获得帮助

Answer 2

在我的情况下，我不得不关闭gradle AndroidX和jettifier，因为某些库仍然依赖于旧的支持库，并且已弃用了无法轻松迁移到AndroidX的依赖。

无法构建React Native 0.59.8 android.support.v4.net.ConnectivityManagerCompat

2 个答案: