Plugin execution not covered by lifecycle configuration

Hello.

I'm trying to follow the steps in [1], "How-To Build AEM Projects using Apache Maven".

Now, I'm following the step "Compiling JSPs as part of the Maven Compile Phase", in "HOW-TO WORK WITH JSPS" section.

When I paste the "maven-jspc-plugin" and "remove-compiled-jsps" plugins sections to "myproject/content/pom.xml" (see [2]), I found these errors in Maven Console (I'm working with Eclipse):

Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-clean-plugin:2.4.1:clean (execution: remove-compiled-jsps, phase: process-classes)

Plugin execution not covered by lifecycle configuration: org.apache.sling:maven-jspc-plugin:2.0.6:jspc (execution: compile-jsp, phase: compile)

Somebody with the same issue? Any advise to solve it?

Thank you very much.

[1] http://dev.day.com/docs/en/cq/aem-how-tos/development/how-to-build-aem-projects-using-apac he-maven.html

[2]