Adicionei o código do plugin jetty mvn no meu projeto pom.xml.

<plugin>
  <groupId>org.mortbay.jetty</groupId>
  <artifactId>maven-jetty-plugin</artifactId>
  <version>6.1.26</version>
  <configuration>
    <contextPath>/redkites</contextPath>
  </configuration>
  <executions>
    <execution>
      <id>start-jetty</id>
      <phase>deploy</phase>
      <goals>
        <goal>run</goal>
      </goals>
      <configuration>
        <scanIntervalSeconds>10</scanIntervalSeconds>
        <daemon>true</daemon>
      </configuration>
    </execution>
  </executions>
</plugin>

Quando eu uso comandossudo mvn compile esudo mvn clean install, Não encontrei nenhum erro e criei com êxito, mas quando digito o comandosudo mvn jetty:run, Estou recebendo um erro:

[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 (/root/.m2/repository), central (http://repo.maven.apache.org/maven2)] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/NoPluginFoundForPrefixException

Por favor, sugerir uma maneira de resolvê-lo. Obrigado