Java.lang.NoClassDefFoundError：解析失败：Lcom / google / firebase / FirebaseApp
内容导读
互联网集市收集整理的这篇技术教程文章主要介绍了Java.lang.NoClassDefFoundError：解析失败：Lcom / google / firebase / FirebaseApp，小编现在分享给大家，供广大互联网技能从业者学习和参考。文章包含5042字，纯文字阅读大概需要8分钟。
内容图文
这是React Native项目.在Android Studio Emulator中成功构建后出错：
java.lang.NoClassDefFoundError: Failed resolution of:
Lcom/google/firebase/FirebaseApp
我的文件：
的package.json：
...
"react-native": "^0.55.3",
"react-native-camera": "1.1.2",
"react-native-check-box": "^2.1.0",
"react-native-extended-stylesheet": "^0.8.1",
"react-native-firebase": "^4.2.0",
"react-native-geocoder": "^0.5.0",
"react-native-git-upgrade": "^0.2.7",
"react-native-htmlview": "^0.12.1",
"react-native-image-picker": "^0.26.10",
"react-native-linear-gradient": "^2.4.0",
"react-native-local-storage": "^1.5.2",
"react-native-maps": "^0.21.0",
"react-native-modal": "^5.4.0",
"react-native-modal-dropdown": "^0.6.1",
"react-native-read-more-text": "^1.0.0",
"react-native-router-flux": "^4.0.0-beta.27",
"react-native-svg-image": "^2.0.1",
"react-native-text-input-mask": "^0.7.0",
...
Android设备/应用/的build.gradle：
...
android {
compileSdkVersion 27
buildToolsVersion "27.0.1"
defaultConfig {
applicationId "com.something.anything"
minSdkVersion 16
targetSdkVersion 22
versionCode 1
versionName "1.0"
ndk {
abiFilters "armeabi-v7a", "x86"
}
multiDexEnabled true
}
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"
}
}
buildTypes {
release {
signingConfig signingConfigs.release
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:
// 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
}
}
}
}
dependencies {
compile(project(':react-native-firebase')) {
transitive = false
}
compile project(':react-native-geocoder')
compile(project(':react-native-maps')) {
exclude group: 'com.google.android.gms', module: 'play-services-base'
exclude group: 'com.google.android.gms', module: 'play-services-maps'
exclude group: 'com.google.android.gms', module: 'play-services-location'
}
compile 'com.google.android.gms:play-services-base:15.+'
compile 'com.google.android.gms:play-services-maps:15.+'
compile 'com.google.android.gms:play-services-location:15.+'
compile (project(':react-native-camera')) {
exclude group: "com.google.android.gms"
compile 'com.android.support:exifinterface:25.+'
compile ('com.google.android.gms:play-services-vision:12.0.1') {
force = true
}
}
compile project(':react-native-text-input-mask')
compile project(':react-native-linear-gradient')
compile project(':react-native-image-picker')
compile fileTree(dir: "libs", include: ["*.jar"])
compile "com.android.support:appcompat-v7:23.0.1"
compile "com.facebook.react:react-native:+" // From node_modules
}
allprojects {
repositories {
maven { url "https://jitpack.io" }
maven { url "https://maven.google.com" }
}
}
// 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'
}
安卓/的build.gradle
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
mavenLocal()
jcenter()
maven {
// All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
url "$rootDir/../node_modules/react-native/android"
}
}
}
subprojects {
project.configurations.all {
resolutionStrategy.eachDependency { details ->
if (details.requested.group == 'com.android.support'
&& !details.requested.name.contains('multidex')
) {
details.useVersion "27.1.0"
}
}
}
}
我尝试了很多解决方案,但没有任何帮助.
解决方法:
面对同样的问题.然后我发现我错过了将Firebase与Android项目集成的一组重要说明：https://firebase.google.com/docs/android/setup#add_firebase_to_your_app
以下是对我的案例有帮助的文档中的步骤摘要：
>生成google-services.json并将其放入您的android / app /目录.
>将classpath’com.google.gms：google-services：4.1.0’添加到buildscript – > root-level build.gradle config的dependencies部分;将google()添加到allprogects – >同一文件的存储库部分.
>将实现’com.google.firebase：firebase-core：16.0.3’添加到app模块的build.gradle文件的依赖项部分;添加apply plugin：’com.google.gms.google-services’位于同一文件的最底部.
>同步和重建.现在它应该工作.
内容总结
以上是互联网集市为您收集整理的Java.lang.NoClassDefFoundError：解析失败：Lcom / google / firebase / FirebaseApp全部内容，希望文章能够帮你解决Java.lang.NoClassDefFoundError：解析失败：Lcom / google / firebase / FirebaseApp所遇到的程序开发问题。 如果觉得互联网集市技术教程内容还不错，欢迎将互联网集市网站推荐给程序员好友。
内容备注
版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 gblab@vip.qq.com 举报，一经查实，本站将立刻删除。
内容手机端
扫描二维码推送至手机访问。