[英]error: MainApplication is not abstract and does not override abstract method
PLEASE HELP!!请帮忙!! I have been search all over but getting no answer
我一直在搜索,但没有得到答案
error: MainApplication is not abstract and does not override abstract method错误:MainApplication 不是抽象的,并且不会覆盖抽象方法
Environment环境
React Native Navigation version: 7.24.0
React Native version: 0.66.3
android/build.gradle安卓/build.gradle
buildscript {
ext {
minSdkVersion = 21 // Or higher
compileSdkVersion = 29
targetSdkVersion = 29
supportLibVersion = "28.0.0"
supportVersion = "28.0.0"
googlePlayServicesLocationVersion = "16.0.0"
googlePlayServicesVersion = "16.0.0"
googlePlayServicesVisionVersion = "17.0.2"
reactNativeVersion = "+"
kotlinVersion = "1.5.31" // Or any version above 1.3.x
RNNKotlinVersion = kotlinVersion
repositories {
google()
jcenter()
mavenLocal()
mavenCentral()
}
configurations.all {
resolutionStrategy.force 'com.google.code.findbugs:jsr305:2.0.1'
}
dependencies {
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:1.5.31"
classpath 'com.android.tools.build:gradle:3.6.0'
classpath 'com.google.gms:google-services:4.3.10'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
mavenLocal()
jcenter()
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url "$rootDir/../node_modules/react-native/android"
}
maven {
url 'https://maven.google.com/'
name 'Google'
}
maven { url 'https://jitpack.io' }
}
}
subprojects {
project.configurations.all {
resolutionStrategy.eachDependency { details ->
if (details.requested.group == 'com.android.support'
&& !details.requested.name.contains('multidex') ) {
details.useVersion "29.0.0"
}
if (details.requested.group == 'com.google.android.gms'
&& !details.requested.name.contains('multidex') && !details.requested.name.contains('play-services-stats')) {
details.useVersion "17.0.0"
}
if (details.requested.group == 'com.google.android.gms'
&& !details.requested.name.contains('multidex') && details.requested.name.contains('play-services-stats')) {
details.useVersion "+"
}
}
}
}
App/build.gradle应用程序/build.gradle
apply plugin: "com.android.application"
import com.android.build.OutputFile
/**
* The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets
* and bundleReleaseJsAndAssets).
* These basically call `react-native bundle` with the correct arguments during the Android build
* cycle. By default, bundleDebugJsAndAssets is skipped, as in debug/dev mode we prefer to load the
* bundle directly from the development server. Below you can see all the possible configurations
* and their defaults. If you decide to add a configuration block, make sure to add it before the
* `apply from: "../../node_modules/react-native/react.gradle"` line.
*
* project.ext.react = [
* // the name of the generated asset file containing your JS bundle
* bundleAssetName: "index.android.bundle",
*
* // the entry file for bundle generation
* entryFile: "index.android.js",
*
* // whether to bundle JS and assets in debug mode
* bundleInDebug: false,
*
* // whether to bundle JS and assets in release mode
* bundleInRelease: true,
*
* // whether to bundle JS and assets in another build variant (if configured).
* // See http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Variants
* // The configuration property can be in the following formats
* // 'bundleIn${productFlavor}${buildType}'
* // 'bundleIn${buildType}'
* // bundleInFreeDebug: true,
* // bundleInPaidRelease: true,
* // bundleInBeta: true,
*
* // whether to disable dev mode in custom build variants (by default only disabled in release)
* // for example: to disable dev mode in the staging build type (if configured)
* devDisabledInStaging: true,
* // The configuration property can be in the following formats
* // 'devDisabledIn${productFlavor}${buildType}'
* // 'devDisabledIn${buildType}'
*
* // the root of your project, i.e. where "package.json" lives
* root: "../../",
*
* // where to put the JS bundle asset in debug mode
* jsBundleDirDebug: "$buildDir/intermediates/assets/debug",
*
* // where to put the JS bundle asset in release mode
* jsBundleDirRelease: "$buildDir/intermediates/assets/release",
*
* // where to put drawable resources / React Native assets, e.g. the ones you use via
* // require('./image.png')), in debug mode
* resourcesDirDebug: "$buildDir/intermediates/res/merged/debug",
*
* // where to put drawable resources / React Native assets, e.g. the ones you use via
* // require('./image.png')), in release mode
* resourcesDirRelease: "$buildDir/intermediates/res/merged/release",
*
* // by default the gradle tasks are skipped if none of the JS files or assets change; this means
* // that we don't look at files in android/ or ios/ to determine whether the tasks are up to
* // date; if you have any other folders that you want to ignore for performance reasons (gradle
* // indexes the entire tree), add them here. Alternatively, if you have JS files in android/
* // for example, you might want to remove it from here.
* inputExcludes: ["android/**", "ios/**"],
*
* // override which node gets called and with what additional arguments
* nodeExecutableAndArgs: ["node"],
*
* // supply additional arguments to the packager
* extraPackagerArgs: []
* ]
*/
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
android {
compileSdkVersion 31
buildToolsVersion "29.0.3"
defaultConfig {
applicationId "com.prasiam.trader"
minSdkVersion 21
targetSdkVersion 31
versionCode 4
versionName "1.4"
multiDexEnabled = true
ndk {
abiFilters "armeabi-v7a", "x86"
}
}
repositories {
jcenter()
google() // Google's Maven repository
maven {
url "https://maven.google.com"
}
}
signingConfigs {
release {
if (project.hasProperty('MYAPP_RELEASE_STORE_FILE')) {
storeFile file(MYAPP_RELEASE_STORE_FILE)
storePassword MYAPP_RELEASE_STORE_PASSWORD
keyAlias MYAPP_RELEASE_KEY_ALIAS
keyPassword MYAPP_RELEASE_KEY_PASSWORD
}
}
}
splits {
abi {
reset()
enable enableSeparateBuildPerCPUArchitecture
universalApk false // If true, also generate a universal APK
include "armeabi-v7a", "x86"
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
buildTypes {
release {
proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
signingConfig signingConfigs.release
}
}
// 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:
// http://tools.android.com/tech-docs/new-build-system/user-guide/apk-splits
def versionCodes = ["armeabi-v7a":1, "x86":2]
def abi = output.getFilter(OutputFile.ABI)
if (abi != null) { // null for the universal-debug, universal-release variants
output.versionCodeOverride =
versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
}
}
}
configurations.all {
resolutionStrategy.eachDependency { DependencyResolveDetails details ->
def requested = details.requested
if (requested.group == 'com.android.support' && requested.name != 'multidex') {
details.useVersion "${rootProject.ext.supportLibVersion}"
}
}
}
}
dependencies {
implementation(project(':react-native-firebase:')) {
transitive = false
}
// Firebase dependencies
implementation platform('com.google.firebase:firebase-bom:29.0.0')
implementation 'com.google.android.gms:play-services-gcm:17.0.0'
implementation "com.google.android.gms:play-services-base:17.6.0"
implementation "com.google.android.gms:play-services-tasks:17.2.1"
implementation "com.google.android.gms:play-services-afs-native:19.0.1"
implementation "com.google.firebase:firebase-core"
implementation "com.google.firebase:firebase-messaging"
implementation "com.google.firebase:firebase-analytics"
implementation "com.google.firebase:firebase-auth"
implementation "androidx.annotation:annotation:1.0.2"
implementation "androidx.appcompat:appcompat:1.0.0-alpha3"
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation 'com.android.support:design:25.4.0'
implementation "com.android.support:appcompat-v7:${rootProject.ext.supportLibVersion}"
implementation "com.facebook.react:react-native:+" // From node_modules
implementation project(':react-native-vector-icons')
implementation project(':react-native-device-info')
implementation project(':react-native-navigation')
testImplementation ("org.robolectric:robolectric:4.7.2"){
exclude group: 'org.apache.maven', module: 'maven-artifact'
exclude group: 'org.apache.maven', module: 'maven-artifact-manager'
exclude group: 'org.apache.maven', module: 'maven-model'
exclude group: 'org.apache.maven', module: 'maven-plugin-registry'
exclude group: 'org.apache.maven', module: 'maven-profile'
exclude group: 'org.apache.maven', module: 'maven-project'
exclude group: 'org.apache.maven', module: 'maven-settings'
exclude group: 'org.apache.maven', module: 'maven-error-diagnostics'
exclude group: "org.apache.maven.wagon"
}
}
// 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.compile
into 'libs'
}
apply plugin: 'com.google.gms.google-services'
My MainApplication我的主要应用程序
import android.app.Application;
import androidx.annotation.Nullable;
import com.reactnativenavigation.react.NavigationReactNativeHost;
import com.reactnativenavigation.NavigationActivity;
import com.reactnativenavigation.NavigationApplication;
import com.facebook.react.ReactApplication;
import io.invertase.firebase.RNFirebasePackage;
import io.invertase.firebase.messaging.RNFirebaseMessagingPackage;
import io.invertase.firebase.notifications.RNFirebaseNotificationsPackage;
import com.oblador.vectoricons.VectorIconsPackage;
import com.learnium.RNDeviceInfo.RNDeviceInfo;
import com.facebook.react.ReactApplication;
import com.facebook.react.ReactNativeHost;
import com.facebook.react.ReactPackage;
import com.facebook.react.shell.MainReactPackage;
import com.facebook.soloader.SoLoader;
import java.util.Arrays;
import java.util.List;
public class MainApplication extends NavigationApplication {
@Override
public String getJSMainModuleName() {
return "index";
}
@Override
public boolean isDebug() {
// Make sure you are using BuildConfig from your own application
return BuildConfig.DEBUG;
}
protected List<ReactPackage> getPackages() {
// Add additional packages you require here
// No need to add RnnPackage and MainReactPackage
return Arrays.<ReactPackage>asList(
new RNFirebasePackage(),
new RNFirebaseMessagingPackage(),
new RNFirebaseNotificationsPackage(),
new VectorIconsPackage(),
new RNDeviceInfo()
);
}
@Override
public List<ReactPackage> createAdditionalReactPackages() {
return getPackages();
}
}
ERROR:错误:
Task:app:compileDebugJavaWithJavac C:\Users\user\Downloads\Scripts\kantongin-mobile\trader\android\app\src\main\java\com\prasiam\trader\MainApplication.java:23: error: MainApplication is not abstr act and does not override abstract method getReactNativeHost() in ReactApplication
任务:app:compileDebugJavaWithJavac C:\Users\user\Downloads\Scripts\kantongin-mobile\trader\android\app\src\main\java\com\prasiam\trader\MainApplication.java:23: 错误行动并且不覆盖 ReactApplication 中的抽象方法 getReactNativeHost()
public class MainApplication extends NavigationApplication { ^ C:\Users\user\xxx\xxx\xxx\xxx\android\app\src\main\java\com\prasiam\trader\MainApplication.java:25: error: method does not override or implement a method from a supertype @Override ^ C:\Users\user\xxx\xxx\xxx\xxx\trader\android\app\src\main\java\com\prasiam\trader\MainApplication.java:30: error: method does not override or implement a method from a supertype @Override ^ C:\Users\user\xxx\xxx\xxx\xxx\android\app\src\main\java\com\prasiam\trader\MainApplication.java:48: error: method does not override or implement a method from a supertype @Override ^ 4 errors public class MainApplication extends NavigationApplication { ^ C:\Users\user\xxx\xxx\xxx\xxx\android\app\src\main\java\com\prasiam\trader\MainApplication.java:25: error: method does not override或从超类型实现方法@Override ^ C:\Users\user\xxx\xxx\xxx\xxx\trader\android\app\src\main\java\com\prasiam\trader\MainApplication.java:30:错误: 方法不会覆盖或实现来自超类型 @Override ^ C:\Users\user\xxx\xxx\xxx\xxx\android\app\src\main\java\com\prasiam\trader\MainApplication.java 的方法: 48:错误:方法没有覆盖或实现超类型@Override ^ 4个错误
Task:app:compileDebugJavaWithJavac FAILED
任务:应用程序:compileDebugJavaWithJavac 失败
FAILURE: Build failed with an exception. FAILURE:构建失败并出现异常。
Compilation failed;
编译失败; see the compiler error output for details.
有关详细信息,请参阅编译器错误 output。
THANKS in Advance提前致谢
For anyone looking at this now, you just need to add an implementation of the getReactNativeHost() method.对于现在正在查看此内容的任何人,您只需要添加 getReactNativeHost() 方法的实现即可。 I ran into this problem because I missed it when I was upgrading react native.
我遇到了这个问题,因为我在升级 react native 时错过了它。
Refer to the MainApplication.java to double check your changes/files (make sure to change the versions to match your project): https://react-native-community.github.io/upgrade-helper/?from=0.64.3&to=0.69.3 Refer to the MainApplication.java to double check your changes/files (make sure to change the versions to match your project): https://react-native-community.github.io/upgrade-helper/?from=0.64.3&to =0.69.3
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