Vaadin 8.1 Liferay 7 Portlet is not show to add to a Page, after copying Ja

I did the following

  1. I create a Maven project using the Archetype, mvn archetype:generate -DarchetypeGroupId=com.vaadin -DarchetypeArtifactId=vaadin-archetype-liferay-portlet -DarchetypeVersion=8.3.1
  2. I did : “mvn package” in the folder of the generate project
  3. I copy the generated Jar file in target folder to the deploy folder os the liferay 7 I have running in a server.
  4. then in the log it says : [code] [code] 00:28:49,538 INFO [] [AutoDeployDir:252] Processing CaixaV-Solicitud-Credito-1.0-SNAPSHOT.jar [code] but nothing else
  5. But I can’t see the portlet available to use.

do I missing some step?