Android - Firebase 错误 : Discarding data. 无法发送应用启动

Question

我尝试将数据从 Firebase 数据库检索到我的回收站 View ，无论我尝试什么，我都会收到此错误。我该如何解决这个问题？

在我的模拟器中，Google Play 服务版本是:11.5.80
我没有物理 Android 设备，所以我没有在真实设备上进行测试。
我试图更新我的模拟器，但没有可用于模拟器的更新。

Discarding data. Failed to send app launch
Failed to get app instance id
Failed to send current screen to service
Discarding data. Failed to send event to service

Logcat 还说 Google Play services out of date .

HostConnection::get() New Host Connection established 0x912a2040, tid 8449
01-15 07:36:02.928 8422-8449/com.user.myapp I/zygote: android::hardware::configstore::V1_0::ISurfaceFlingerConfigs::hasWideColorDisplay retrieved: 0
01-15 07:36:02.928 8422-8449/com.user.myapp I/OpenGLRenderer: Initialized EGL, version 1.4
01-15 07:36:02.929 8422-8449/com.user.myapp D/OpenGLRenderer: Swap behavior 1
01-15 07:36:02.929 8422-8449/com.user.myapp W/OpenGLRenderer: Failed to choose config with EGL_SWAP_BEHAVIOR_PRESERVED, retrying without...
01-15 07:36:02.929 8422-8449/com.user.myapp D/OpenGLRenderer: Swap behavior 0
01-15 07:36:02.934 8422-8449/com.user.myapp D/EGL_emulation: eglCreateContext: 0xa10843c0: maj 3 min 0 rcv 3
01-15 07:36:02.949 8422-8449/com.user.myapp D/EGL_emulation: eglMakeCurrent: 0xa10843c0: ver 3 0 (tinfo 0xa1083630)
01-15 07:36:02.952 8422-8449/com.user.myapp E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008cdf
01-15 07:36:02.952 8422-8449/com.user.myapp E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008cdf
01-15 07:36:02.952 8422-8449/com.user.myapp E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008824
01-15 07:36:02.953 8422-8449/com.user.myapp E/eglCodecCommon: glUtilsParamSize: unknow param 0x00008824
01-15 07:36:03.024 8422-8449/com.user.myapp D/EGL_emulation: eglMakeCurrent: 0xa10843c0: ver 3 0 (tinfo 0xa1083630)
01-15 07:36:03.061 8422-8451/com.user.myapp D/NetworkSecurityConfig: No Network Security Config specified, using platform default
01-15 07:36:03.155 8422-8443/com.user.myapp V/FA: Connecting to remote service
01-15 07:36:03.191 8422-8443/com.user.myapp W/GooglePlayServicesUtil: Google Play services out of date.  Requires 11910000 but found 11580470
01-15 07:36:03.195 8422-8422/com.user.myapp W/FA: Service connection failed: ConnectionResult{statusCode=SERVICE_VERSION_UPDATE_REQUIRED, resolution=null, message=null}
01-15 07:36:03.230 8422-8443/com.user.myapp V/FA: Processing queued up service tasks: 4
01-15 07:36:03.230 8422-8443/com.user.myapp E/FA: Discarding data. Failed to send app launch
01-15 07:36:03.230 8422-8443/com.user.myapp E/FA: Failed to get app instance id
01-15 07:36:03.230 8422-8443/com.user.myapp E/FA: Failed to send current screen to service
01-15 07:36:03.230 8422-8443/com.user.myapp E/FA: Discarding data. Failed to send event to service
01-15 07:36:03.231 8422-8443/com.user.myapp V/FA: Processing queued up service tasks: 0

这是我的 build.gradle 文件

apply plugin: 'com.android.application'

android {
    compileSdkVersion 27
    defaultConfig {
        applicationId "com.user.myapp”
        minSdkVersion 19
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:27.0.2'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'

    // firebase
    implementation 'com.google.firebase:firebase-database:11.8.0'
    implementation 'com.firebaseui:firebase-ui-database:3.1.3'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation com.android.support.test.espresso:espresso-core:3.0.1'

    compile 'com.android.support:cardview-v7:27.0.2'
    compile 'com.android.support:recyclerview-v7:27.0.2'
    compile 'com.android.support:design:27.0.2'

}

apply plugin: 'com.google.gms.google-services'

和项目级别的 build.gradle

buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'

        classpath 'com.google.gms:google-services:3.1.1'



        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com" // Google's Maven repository
        }
    }
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

Answer 1

看起来您正在尝试使用 API 27 仿真器镜像运行。目前(1 月 14 日)没有发布支持 Firebase/Google Play 版本 11.8.0 的 API 27 模拟器图像。

您的选择是使用 API 26 仿真器镜像运行，或降级构建中的库版本:

compileSdkVersion 26
...
targetSdkVersion 26
...
// for all Support Libs, use 26.1.0
...
implementation 'com.google.firebase:firebase-database:11.4.2'
implementation 'com.firebaseui:firebase-ui-database:3.1.0'