Android Problem Subscribing to a custom message

edit

Hello all!

I am having problems when creating a new subscriber to a custom message in my android app. I have the same code in a java project and works ok showing the information message in the terminal.

The estrange thing is that there are another subscriber running just in the same code.

The error log is:

E/UpdatePublisherRunnable(4793): java.lang.RuntimeException: java.net.UnknownHostException: Unable to resolve host "arturo-desktop": No address associated with hostname

I create the subscriber this way:

Subscriber<meta_msgs.NodesList> subscriber2 = connectedNode.newSubscriber("nodes_list", meta_msgs.NodesList._TYPE);
    subscriber2.addMessageListener(new MessageListener<meta_msgs.NodesList>() {
        @Override
        public void onNewMessage(meta_msgs.NodesList message) {
            Toast.makeText(getContext(), "OK. Message Received!!!", Toast.LENGTH_SHORT).show();
        }
      });

My custom message is composed of custom messages too. Here are the codes:

NodesList.msg:

Header header #for timestamp
NodeInfo[] nodes # an array of the nodes

NodeInfo.msg:

# This message holds info of a ROS node
# 

# Possible levels of operations
byte OK=1
byte ERROR=0

string node_name # the name of the node
byte status # status of the ros node regarding master connectivity
ROSTopic[] subs
ROSTopic[] pubs
ROSParameter[] params # the parameters of the node
string[] errors # latest history of relevant messages sent to rosout from the node

ROSParameter.msg:

string type # see OMTypes.msg for values
string name
uint8[] value

ROSTopic.msg:

string name # name of the topic
string type # type of the message

OMTypes.msg:

# Python format characters are used to simplify the Python code
string INTEGER=i    
string STRING=64p
string DOUBLE=d

Does anybody have problems when trying custom messages with Android? Thanks! Its very important for me!