Retrofit - Parse XML with list of elements using SimpleXmlConverterFactory

Question

The XML content that returns from server:

<root> <option value="ROW VALUE1">ROW CONTENT1</option> <option value="ROW VALUE2">ROW CONTENT2</option> </root>

My representation for option object:

public class Option {
    @Element(name = "option")
    private String option;

    @Attribute(required = false)
    private String value;
}

My representation for Response object:

@Root(name = "root")
public class GetOptionsResponse
{
    @ElementList(entry = "option", inline = true)
    private ArrayList<Option> mOptionList;
}

But anytime I tried to run the code and parse it, I got:

java.lang.RuntimeException: org.simpleframework.xml.core.ValueRequiredException: Unable to satisfy @org.simpleframework.xml.Element(data=false, name=option, required=true, type=void) on field 'option' private java.lang.String com.packagename.models.Option.option for class com.packagename.models.Option at line 1

What am I doing wrong?