[ 
http://jira.codehaus.org/browse/MPLUGIN-102?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_127953
 ] 

Leonardo Uribe commented on MPLUGIN-102:
----------------------------------------

I have the same error running archetypes with 2.4

The log is this:

[INFO]   Apache MyFaces Trinidad Archetype
[INFO]   MyFaces Archetype
[INFO]   MyFaces Archetype Facelets
[INFO]   MyFaces Portlet Archetype
[INFO] ------------------------------------------------------------------------
[INFO] Building Apache MyFaces Buildtools Maven2 Archetype Parent
[INFO]    task-segment: [clean, install]
[INFO] ------------------------------------------------------------------------
[INFO] [clean:clean]
[INFO] [site:attach-descriptor]
[INFO] [install:install]
[INFO] Installing C:\GSOC\workspace\maven2-archetypes\pom.xml to C:\Documents 
and 
Settings\Leonardo\.m2\repository\org\apache\myfaces\buildtools\myfaces-archetype-parent\1.0.1-SNAPSHOT\myfaces-archetype-parent-1.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] Building JSF Components Library Archetype
[INFO]    task-segment: [clean, install]
[INFO] ------------------------------------------------------------------------
[INFO] [clean:clean]
[INFO] Deleting directory 
C:\GSOC\workspace\maven2-archetypes\myfaces-archetype-jsfcomponents\target
[INFO] [plugin:descriptor]
[INFO] Using 2 extractors.
[INFO] Applying extractor for language: java
[INFO] Extractor for language: java found 0 mojo descriptors.
[INFO] Applying extractor for language: bsh
[INFO] Extractor for language: bsh found 0 mojo descriptors.
[INFO] ------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO] ------------------------------------------------------------------------
[INFO] Error extracting plugin descriptor: 'No mojo descriptors found in 
plugin.'

[INFO] ------------------------------------------------------------------------
[INFO] Trace
org.apache.maven.lifecycle.LifecycleExecutionException: Error extracting plugin 
descriptor: 'No mojo descriptors found in plugin.'
        at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:564)
        at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalWithLifecycle(DefaultLifecycleExecutor.java:480)
        at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoal(DefaultLifecycleExecutor.java:459)
        at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoalAndHandleFailures(DefaultLifecycleExecutor.java:311)
        at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeTaskSegments(DefaultLifecycleExecutor.java:278)
        at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.execute(DefaultLifecycleExecutor.java:143)
        at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:333)
        at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:126)
        at org.apache.maven.cli.MavenCli.main(MavenCli.java:282)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at 
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
        at 
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at org.codehaus.classworlds.Launcher.launchEnhanced(Launcher.java:315)
        at org.codehaus.classworlds.Launcher.launch(Launcher.java:255)
        at org.codehaus.classworlds.Launcher.mainWithExitCode(Launcher.java:430)
        at org.codehaus.classworlds.Launcher.main(Launcher.java:375)
Caused by: org.apache.maven.plugin.MojoExecutionException: Error extracting 
plugin descriptor: 'No mojo descriptors found in plugin.'
        at 
org.apache.maven.plugin.plugin.AbstractGeneratorMojo.execute(AbstractGeneratorMojo.java:149)
        at 
org.apache.maven.plugin.DefaultPluginManager.executeMojo(DefaultPluginManager.java:447)
        at 
org.apache.maven.lifecycle.DefaultLifecycleExecutor.executeGoals(DefaultLifecycleExecutor.java:539)
        ... 16 more
Caused by: org.apache.maven.plugin.descriptor.InvalidPluginDescriptorException: 
No mojo descriptors found in plugin.
        at 
org.apache.maven.tools.plugin.scanner.DefaultMojoScanner.populatePluginDescriptor(DefaultMojoScanner.java:107)
        at 
org.apache.maven.plugin.plugin.AbstractGeneratorMojo.execute(AbstractGeneratorMojo.java:137)
        ... 18 more
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5 seconds
[INFO] Finished at: Wed Mar 19 20:32:46 COT 2008
[INFO] Final Memory: 11M/254M
[INFO] ------------------------------------------------------------------------

getting back to 2.3 make this work again

> The 2.4 Release Breaks Previously-Working Builds
> ------------------------------------------------
>
>                 Key: MPLUGIN-102
>                 URL: http://jira.codehaus.org/browse/MPLUGIN-102
>             Project: Maven 2.x Plugin Tools
>          Issue Type: Bug
>          Components: Plugin Plugin
>    Affects Versions: 2.4
>         Environment: Maven version: 2.0.8
> Java version: 1.5.0_14
> OS name: "windows vista" version: "6.0" arch: "x86" Family: "windows"
>            Reporter: James Carman
>         Attachments: archetype-test.zip, debug.log
>
>
> We have an archetype contained within our project.  Today, when I tried to 
> run our build, I got the following error:
> [INFO] [plugin:descriptor]
> [INFO] Using 2 extractors.
> [INFO] Applying extractor for language: java
> [INFO] Extractor for language: java found 0 mojo descriptors.
> [INFO] Applying extractor for language: bsh
> [INFO] Extractor for language: bsh found 0 mojo descriptors.
> [INFO] 
> ------------------------------------------------------------------------
> [ERROR] BUILD ERROR
> [INFO] 
> ------------------------------------------------------------------------
> [INFO] Error extracting plugin descriptor: 'No mojo descriptors found in 
> plugin.'
> However, if I add this to my pom.xml file for that module:
> <pluginManagement>
>   <plugins>
>     <plugin>
>       <groupId>org.apache.maven.plugins</groupId>
>       <artifactId>maven-plugin-plugin</artifactId>
>       <version>2.3</version>
>     </plugin>
>   </plugins>
> </pluginManagement>
> the build works just fine, as usual (understandable since the 2.4 release 
> came out yesterday).

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