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Answer 1

A:

I see that you are using Emma report. Maybe it a problem with dependencies in this plugin. Missing class should be in maven-plugin-api artifact.

Try first to comment out Emma report, if that helps try use antoher version of this plugin or fixing it by adding appropriate dependency in your pom - in your case maven-plugin-api.

cetnar 2009-12-16 10:40:00

thank you for the tip, I'll try this out and check whether it solves the problem.

sunnyj 2009-12-16 17:20:50

Answer 2

A:

First, if possible then use the latest version of Maven (2.2.1), its super pom will properly contain new versions that might solve your problem. Then try forcing a plugin update using -cpu i.e:

mvn -cpu site

If you are using snapshots then also add -U. Finally if you freeze the plugin versions in your project, then try updating them. If all else fails then take a look at the effective pom (mvn help:effective-pom) to see what versions are bing used, then google for bugs

Lars Tackmann 2009-12-16 12:48:30

thank you for the tip, I'll try this out and check whether it solves the problem.

sunnyj 2009-12-16 17:18:35

Answer 3

A:

This should work with Maven 2.1.0 (even if upgrading would be a good idea). Try to use a more recent version of the plugin in your POM by explicitly setting the version (you should use fixed version anyway):

<project>
  ...
  <build>
    <!-- To define the plugin version in your parent POM -->
    <pluginManagement>
      <plugins>
        <plugin>
          <groupId>org.apache.maven.plugins</groupId>
          <artifactId>maven-site-plugin</artifactId>
          <!-- Lock down plugin version for build reproducibility -->
          <version>2.0.1</version>
        </plugin>
        ...
      </plugins>
    </pluginManagement>
    <!-- To use the plugin goals in your POM or parent POM -->
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-site-plugin</artifactId>
      </plugin>
      ...
    </plugins>
  </build>
  ...
</project>

Pascal Thivent 2009-12-16 21:41:20

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Maven site-deploy build error.

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