无法获取提供程序数据: java.lang.IllegalArgumentException:缺少android.support.FILE_PROVIDER_PATHS元数据？

<manifest>
    ...
    <application>
        ...
        <provider
            android:name="android.support.v4.content.FileProvider"
            android:authorities="com.example.myapp.fileprovider"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/file_paths" />
        </provider>
        ...
    </application>
</manifest>

<paths>
    <external-path name="external_files" path="." />
</paths>