Vaadin 14 + RestEasy client

I create one basic project in a app starter (Plain java Servlet), start the project and access http://localhost:8080 and the project show.

then I put in my pom.xml the Resteasy-client dependency.

<dependency>
	<groupId>org.jboss.resteasy</groupId>
	<artifactId>resteasy-client</artifactId>
	<version>4.1.1.Final</version>
</dependency>

then I start my project and when I try to access the http://localhost:8080 I got the error:

RESTEASY003210: Could not find resource for full path: http://localhost:8080/

Anyone know why?

tks

[UPDATED]
only to put the resteasy he break all navigation in my app, If I insert another view in address bar (http://localhost:8080/customer) the show the customer view, but doesn’t work any click or event in my front

Router will take ownership of the whole context, so if you want to use REST service together with your Vaadin app, you need to configure REST service and the Vaadin app in different context roots.

Tatu Lund:
Router will take ownership of the whole context, so if you want to use REST service together with your Vaadin app, you need to configure REST service and the Vaadin app in different context roots.

Even if I only use the Rest client?