Jetty Error: No plugin found for prefix 'jetty'

Question

I make this tutorial from cloud.google,

there i should use

but the command prompt says:

[ERROR] No plugin found for prefix 'jetty' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (C:\Users\Desktop-PC.m2\repository), central (https://repo.maven.apache.org/maven2)] -> [Help 1]

I downloaded Jetty here and put in in the maven plugin folder in ".m2\repository\org\apache\maven\plugins" and I also downloaded the eclipse plugin.

My Question is:

How to install and start maven-jetty-plugin in the cmd ?

Answer 1

My faults are, that I don´t navigate to the pom.xml from the project in the CLI and I have to add this:

<plugin>
  <groupId>org.eclipse.jetty</groupId>
  <artifactId>jetty-maven-plugin</artifactId>
  <version>9.3.13.v20161014</version>
</plugin>

Into the Projects pom.xml.