Android: Error using Retrofit with XML converter

Question

I’m making a simple example of Retrofit on Android with an XML converter, but every time I run I get the following exception:

java.lang.RuntimeException: org.simpleframework.xml.core.ValueRequiredException: Unable to satisfy @org.simpleframework.xml.Element(data=false, name=title, required=true, type=void) on field 'title' private java.lang.String com.rdev.testes.Channel.title for class com.rdev.testes.Channel at line 2

The format of my XML is:

<rss version="2.0">
<channel>
 <title>Testes</title>
 <description>Primeira Descrição</description>
 <link>http://teste.html</link>
 <item>
  <title>Teste numero 5 - 31/10/2017</title>
  <description>
      Descrição teste
  </description>
  <link>
     http://teste.html
  </link>
 </item>
</channel>
</rss>

Channel Class:

@Root(name="rss", strict=false)
public class Channel {

@Element(name = "title")
private String title;

@Element(name = "description")
private String description;

@Element(name = "link")
private String link;

private Item horoscopeDescription;

public String getTitle() {return title;}

public void setTitle(String title) {this.title = title;}

public String getDescription() { return description;}

public void setDescription(String description) { this.description= description;}

public Item getHoroscopeDescription(){ return this.horoscopeDescription;}

public void setLink(String title) { this.link = link;}

public String getLink(String title) { return link;}   

Class Item:

@Root(name="item", Strict=false) public class Item {

@Element(name = "title")
private String title;

@Element(name = "description")
private String description;

public String getTitle() {return title;}

public void setTitle(String title) {this.title = title;}

public String getDescription() {return description;}

public void setDescription(String description) {this.description = description;}

}

I have read several pages on this topic, but I cannot find a solution. Someone can help?

Answer 1

You marked the attribute title as required (that is the configuration default). At some point you are receiving an XML without the title element.

Try to explicitly mark required as false

@Element(name = "title",required = false)
private String title;