我试图解决这个问题，但它总是给我同样的错误。
我使用以下 Firebase 服务：
我希望能解决这个问题，感谢您的帮助，谢谢。
截屏：
Here I show you the console run
Launching lib\main.dart on Android SDK built for x86 in debug mode...
[{"event":"app.progress","params":{"appId":"870bf9fe-6ecb-481e-9990-a8f0123d691f","id":"0","progressId":null,"message":"Initializing gradle..."}}]Initializing gradle...
Resolving dependencies...
Running 'gradlew assembleDebug'...
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
Built build\app\outputs\apk\debug\app-debug.apk.
Installing build\app\outputs\apk\app.apk...
I/flutter (14362): Load es
Syncing files to device Android SDK built for x86...
D/ (14362): HostConnection::get() New Host Connection established 0x9ffa3dc0, tid 14398
D/EGL_emulation(14362): eglMakeCurrent: 0x9fd86c00: ver 3 0 (tinfo 0x9fff1110)
W/zygote (14362): Unsupported class loader
W/zygote (14362): Skipping duplicate class check due to unsupported classloader
I/DynamiteModule(14362): Considering local module com.google.android.gms.firebase_database:4 and remote module com.google.android.gms.firebase_database:6
I/DynamiteModule(14362): Selected remote version of com.google.android.gms.firebase_database, version >= 6
V/DynamiteModule(14362): Dynamite loader version >= 2, using loadModule2NoCrashUtils
W/zygote (14362): Unsupported class loader
W/zygote (14362): Skipping duplicate class check due to unsupported classloader
E/AndroidRuntime(14362): FATAL EXCEPTION: TokenRefresher
E/AndroidRuntime(14362): Process: com.***********, PID: 14362
E/AndroidRuntime(14362): java.lang.NoSuchFieldError: No static field PREFER_HIGHEST_OR_REMOTE_VERSION_NO_FORCE_STAGING of type Lcom/google/android/gms/dynamite/DynamiteModule$VersionPolicy; in class Lcom/google/android/gms/dynamite/DynamiteModule; or its superclasses (declaration of 'com.google.android.gms.dynamite.DynamiteModule' appears in /data/app/com.*********-Bx6_KiELmKKW1pc-YChs7w==/base.apk)
E/AndroidRuntime(14362): at com.google.android.gms.flags.FlagValueProvider.initialize(Unknown Source:7)
E/AndroidRuntime(14362): at com.google.android.gms.flags.FlagRegistry.initialize(Unknown Source:4)
E/AndroidRuntime(14362): at com.google.firebase.auth.internal.zzx.initialize(Unknown Source:3)
E/AndroidRuntime(14362): at com.google.firebase.auth.internal.zzt.run(Unknown Source:14)
E/AndroidRuntime(14362): at android.os.Handler.handleCallback(Handler.java:790)
E/AndroidRuntime(14362): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(14362): at android.os.Looper.loop(Looper.java:164)
E/AndroidRuntime(14362): at android.os.HandlerThread.run(HandlerThread.java:65)
W/DynamiteModule(14362): Local module descriptor class for com.google.firebase.auth not found.
W/BiChannelGoogleApi(14362): [FirebaseAuth: ] getGoogleApiForMethod() returned Gms: com.google.firebase.auth.api.internal.zzal@d55aa74
W/DynamiteModule(14362): Local module descriptor class for com.google.firebase.auth not found.
I/FirebaseAuth(14362): [FirebaseAuth:] Loading module via FirebaseOptions.
I/FirebaseAuth(14362): [FirebaseAuth:] Preparing to create service connection to gms implementation
D/EGL_emulation(14362): eglMakeCurrent: 0x9fd86c60: ver 3 0 (tinfo 0x89b36690)
D/FirebaseAuth(14362): Notifying id token listeners about user ( oi1ngjUXDpWPIBaen7po8T5vE8R2 ).
D/FirebaseApp(14362): Notifying auth state listeners.
D/FirebaseApp(14362): Notified 1 auth state listeners.
D/NetworkSecurityConfig(14362): No Network Security Config specified, using platform default
I/zygote (14362): Do partial code cache collection, code=61KB, data=44KB
I/zygote (14362): After code cache collection, code=61KB, data=44KB
I/zygote (14362): Increasing code cache capacity to 256KB
D/FlutterNativeView(14362): FlutterView.send called on a detached view, channel=plugins.flutter.io/firebase_database
I/FirebaseAuth(14362): [FirebaseAuth:] Loading module via FirebaseOptions.
I/FirebaseAuth(14362): [FirebaseAuth:] Preparing to create service connection to gms implementation
Lost connection to device.
我的 Android 项目和 build.gradle。
Android -> 构建.gradle
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.2.0'
classpath 'com.google.gms:google-services:4.1.0'
//classpath 'com.android.tools.build:gradle:3.1.2'
//classpath 'com.google.gms:google-services:3.2.1'
}
}
allprojects {
repositories {
google()
jcenter()
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}
subprojects {
project.configurations.all {
resolutionStrategy.eachDependency { details ->
if (details.requested.group == 'com.android.support'
&& !details.requested.name.contains('multidex') ) {
details.useVersion "26.1.0"
}
}
}
}
Android -> 应用程序 -> src -> build.gradle
def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
localPropertiesFile.withReader('UTF-8') { reader ->
localProperties.load(reader)
}
}
def flutterRoot = localProperties.getProperty('flutter.sdk')
if (flutterRoot == null) {
throw new GradleException("Flutter SDK not found. Define location with flutter.sdk in the local.properties file.")
}
def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
flutterVersionCode = '1'
}
def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
flutterVersionName = '1.0'
}
apply plugin: 'com.android.application'
apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
def keystorePropertiesFile = rootProject.file("key.properties")
def keystoreProperties = new Properties()
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
android {
compileSdkVersion 27
lintOptions {
disable 'InvalidPackage'
}
defaultConfig {
applicationId "com.*************"
minSdkVersion 16
targetSdkVersion 27
versionCode flutterVersionCode.toInteger()
versionName flutterVersionName
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
signingConfigs {
release {
keyAlias keystoreProperties['keyAlias']
keyPassword keystoreProperties['keyPassword']
storeFile file(keystoreProperties['storeFile'])
storePassword keystoreProperties['storePassword']
}
}
buildTypes {
release {
signingConfig signingConfigs.release
}
}
}
flutter {
source '../..'
}
dependencies {
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.2'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
implementation 'com.google.firebase:firebase-core:16.0.4'
}
apply plugin: 'com.google.gms.google-services'
我更新了 Android 上的版本 -> build.gradle。但现在又出现了另一个错误。
UPDATED:
Launching lib\main.dart on Android SDK built for x86 in debug mode...
Initializing gradle...
Resolving dependencies...
* Error running Gradle:
Exit code 1 from: C:\Users\*******\AndroidStudioProjects\**********\*********\android\gradlew.bat app:properties:
Starting a Gradle Daemon (subsequent builds will be faster)
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all artifacts for configuration ':classpath'.
> Could not resolve com.android.tools.build:gradle:3.2.0.
Required by:
project :
> Could not resolve com.android.tools.build:gradle:3.2.0.
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'.
> Could not HEAD 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.2.0/gradle-3.2.0.pom'.
> dl.google.com
> Could not resolve com.google.gms:google-services:4.1.0.
Required by:
project :
> Could not resolve com.google.gms:google-services:4.1.0.
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/google/gms/google-services/4.1.0/google-services-4.1.0.pom'.
> Could not HEAD 'https://dl.google.com/dl/android/maven2/com/google/gms/google-services/4.1.0/google-services-4.1.0.pom'.
> dl.google.com
> Could not resolve com.google.gms:google-services:4.1.0.
> Could not get resource 'https://jcenter.bintray.com/com/google/gms/google-services/4.1.0/google-services-4.1.0.pom'.
> Could not HEAD 'https://jcenter.bintray.com/com/google/gms/google-services/4.1.0/google-services-4.1.0.pom'.
> Connect to jcenter.bintray.com:443 [jcenter.bintray.com/159.122.18.156] failed: Connection timed out: connect
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 54s
Finished with error: Please review your Gradle project setup in the android/ folder.
我相信这是因为谷歌一半的 FlutterFire 插件正在使用旧版本的 Android 插件。因此，我已经指定了在我的应用程序级别中使用哪些版本build.gradle。这可能不是一个永久的解决方案，但似乎同时阻止了崩溃。
在应用程序级别build.gradle，添加以下内容dependencies:
implementation 'com.google.firebase:firebase-core:16.0.4'
implementation 'com.google.firebase:firebase-analytics:16.0.4'
implementation 'com.google.firebase:firebase-auth:16.0.4'
implementation 'com.google.firebase:firebase-firestore:17.1.1'
implementation 'com.google.firebase:firebase-functions:16.1.1'
implementation 'com.google.firebase:firebase-messaging:17.3.3'
implementation 'com.google.firebase:firebase-storage:16.0.3'
让我知道这个是否奏效。
编辑：仅添加implementation您正在使用的 Firebase 插件的行。您可以找到每个版本的最新版本here.