android - 找不到从 Google Play Services Util 引用的类

Question

我已将 Google Analytics 添加到我的 Android 项目并按照所有说明进行操作，但我仍然在 LogCat 中收到以下 2 条错误消息:

E/dalvikvm: Could not find class 'android.os.UserManager', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zzah
W/dalvikvm: VFY: unable to resolve check-cast 276 (Landroid/os/UserManager;) in Lcom/google/android/gms/common/GooglePlayServicesUtil;

E/dalvikvm: Could not find class 'android.app.AppOpsManager', referenced from method com.google.android.gms.common.GooglePlayServicesUtil.zzb
W/dalvikvm: VFY: unable to resolve check-cast 25 (Landroid/app/AppOpsManager;) in Lcom/google/android/gms/common/GooglePlayServicesUtil;

这实际上并没有使应用程序崩溃，但很高兴知道为什么会发生这种情况。

Android list (混淆):

<?xml version="1.0" encoding="utf-8"?>
<manifest
    package="com.example.android"
    xmlns:android="http://schemas.android.com/apk/res/android">

    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
    <uses-permission android:name="android.permission.INTERNET"/>
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>

    <application
        android:allowBackup="true"
        android:allowClearUserData="true"
        android:allowTaskReparenting="true"
        android:fullBackupContent="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:restoreAnyVersion="true"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity
            android:name=".MainActivity"
            android:label="@string/app_name"
            android:screenOrientation="portrait">
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>

                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>

        <meta-data
            android:name="com.google.android.gms.version"
            android:value="@integer/google_play_services_version"/>

        <receiver
            android:name="com.google.android.gms.analytics.AnalyticsReceiver"
            android:enabled="true">
            <intent-filter>
                <action android:name="com.google.android.gms.analytics.ANALYTICS_DISPATCH"/>
            </intent-filter>
        </receiver>

        <receiver
            android:name="com.google.android.gms.analytics.CampaignTrackingReceiver"
            android:exported="true">
            <intent-filter>
                <action android:name="com.android.vending.INSTALL_REFERRER"/>
            </intent-filter>
        </receiver>

        <service
            android:name="com.google.android.gms.analytics.AnalyticsService"
            android:enabled="true"
            android:exported="false"/>

        <service android:name="com.google.android.gms.analytics.CampaignTrackingService"/>

    </application>

</manifest>

你们有人知道这个错误吗？

Gradle(缩写):

classpath 'com.android.tools.build:gradle:1.4.0-beta3'
classpath 'com.google.gms:google-services:1.4.0-beta3'

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

compile 'com.android.support:appcompat-v7:23.0.1'
compile 'com.google.android.gms:play-services-analytics:8.1.0'

Answer 1

引用Koh

“UserManager 需要 API 级别 17，而 AppOpsManager 需要 API 级别 19。[...] 否则，这可能是一个 multidex 问题，例如 here。”