MoPub MoPubView错误

Question

我开始使用 user system elapsed 0.081 0.004 3.754 user system elapsed 0.061 0.003 3.340 user system elapsed 0.069 0.003 3.115 user system elapsed 0.059 0.003 3.697 user system elapsed 0.068 0.004 2.788 user system elapsed 0.061 0.004 3.469 实施了MoPub,并尝试展示横幅广告。

尝试展示横幅广告时出错：

sdk

xml文件：

java.lang.UnsupportedOperationException: For security reasons, WebView is not allowed in privileged processes
at android.webkit.WebViewFactory.getProvider(WebViewFactory.java:96)
at android.webkit.WebViewDatabase.getInstance(WebViewDatabase.java:39) etc.

android清单文件：

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <com.mopub.mobileads.MoPubView
        android:id="@+id/adview"
        android:layout_width="fill_parent"
        android:layout_height="50dp"
        />
</LinearLayout>