Android/Eclipse:无法实例化以下类：-com.google.Android.gms.ads.AdView

我正在Google Play Services下转换为新的AdMob，在图形界面上出现以下错误。我已经清理了这个项目很多次了，但是没有运气。有什么建议吗

无法实例化以下类：-com.google.android.gms.ads.AdView

舱单：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.ARCompware.shapetapper"
android:versionCode="4"
android:versionName="1.3" >


<uses-sdk
    android:minSdkVersion="9"
    android:targetSdkVersion="17" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>



<application
    android:allowBackup="true"
    android:icon="@drawable/shapetapperlogo"
    android:label="@string/app_name"
    android:theme="@style/AppTheme" android:logo="@drawable/shapetapperlogo"     android:requiredForAllUsers="true"
    >




    <activity
        android:name="com.ARCompware.shapetapper.MainActivity"
        android:configChanges="orientation|keyboardHidden"
        android:label="@string/app_name"
        android:screenOrientation="portrait"
        android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen" >

        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name="com.ARCompware.shapetapper.HowToPlay"
        android:label="@string/title_activity_how_to_play"
        android:parentActivityName="com.ARCompware.shapetapper.MainActivity"
        android:screenOrientation="portrait" >
        <meta-data
            android:name="android.support.PARENT_ACTIVITY"
            android:value="com.ARCompware.shapetapper.MainActivity" />
    </activity>

    <activity
        android:name="com.ARCompware.shapetapper.GamePlay"
        android:label="@string/title_activity_game_play"
        android:theme="@android:style/Theme.Black.NoTitleBar.Fullscreen"
        android:screenOrientation="portrait" >
    </activity>

    <activity android:name="com.google.android.gms.ads.AdActivity"
          android:configChanges="keyboard|keyboardHidden|orientation|screenLayout|uiMode|screenSize|smallestScreenSize"/>

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


</application>

</manifest>

因此，似乎需要java代码，您需要将其添加到onCreate中：

AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
.addTestDevice("TEST_DEVICE_ID")
.build();
adView.loadAd(adRequest);

还可以将其添加到布局adView中：

<com.google.android.gms.ads.AdView
xmlns:ads="http://schemas.android.com/apk/res-auto"
....

---

Oops，忘了在我的代码中包含Java部分，但是是的，它是完全相同的东西。没有luckOk请确保Google play services库与您的应用程序位于同一工作区，并将此xmlns:ads=”“添加到您的标记com.Google.android.gms.ads.AdViewTried中。还是不走运。
AdView adView = (AdView)this.findViewById(R.id.adView);
AdRequest adRequest = new AdRequest.Builder()
.addTestDevice(AdRequest.DEVICE_ID_EMULATOR)
.addTestDevice("TEST_DEVICE_ID")
.build();
adView.loadAd(adRequest);

<com.google.android.gms.ads.AdView
xmlns:ads="http://schemas.android.com/apk/res-auto"
....