Hello,

I'm just starting with Maven.
Maven is running on Windows7 64bit, installed in C:\Program Files
(x86)\apache-maven-2.2.1\, and the PATH of the machine includes C:\Program
Files (x86)\apache-maven-2.2.1\bin

I've created a new Maven project from eclipse using m2eclipse. The archetype
of the newly created project is maven-archetype-webapp.

This is the POM:

<project xmlns="http://maven.apache.org/POM/4.0.0"; xmlns:xsi="
http://www.w3.org/2001/XMLSchema-instance";
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0
http://maven.apache.org/maven-v4_0_0.xsd";>
  <modelVersion>4.0.0</modelVersion>
  <groupId>Test</groupId>
  <artifactId>Test</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>Test Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
    <finalName>Test</finalName>
  </build>
</project>


Trying to run a simple mvn clean, either from Eclipse or from command line
gives the following error:

C:\Users\User\test\Test>mvn clean
[INFO] Scanning for projects...
[INFO]
------------------------------------------------------------------------
[INFO] Building Test Maven Webapp
[INFO]    task-segment: [clean]
[INFO]
------------------------------------------------------------------------
-----------------------------------------------------
this realm =
app0.child-container[org.apache.maven.plugins:maven-clean-plugin:2.
2]
urls[0] =
file:/C:/Users/User/.m2/repository/org/apache/maven/plugins/maven-clean-plugin/2.2/maven-clean-plugin-2.2.jar
urls[1] =
file:/C:/Users/User/.m2/repository/org/codehaus/plexus/plexus-utils/1.1/plexus-utils-1.1.jar
urls[2] =
file:/C:/Users/User/.m2/repository/org/apache/maven/shared/file-management/1.2/file-management-1.2.jar
urls[3] =
file:/C:/Users/User/.m2/repository/org/apache/maven/shared/maven-shared-io/1.1/maven-shared-io-1.1.jar
Number of imports: 10
import: org.codehaus.classworlds.en...@a6c57a42
import: org.codehaus.classworlds.en...@12f43f3b
import: org.codehaus.classworlds.en...@20025374
import: org.codehaus.classworlds.en...@f8e44ca4
import: org.codehaus.classworlds.en...@92758522
import: org.codehaus.classworlds.en...@ebf2705b
import: org.codehaus.classworlds.en...@bb25e54
import: org.codehaus.classworlds.en...@bece5185
import: org.codehaus.classworlds.en...@3fee8e37
import: org.codehaus.classworlds.en...@3fee19d8


this realm = plexus.core
urls[0] = file:/C:/Program Files
(x86)/apache-maven-2.2.1/bin/../lib/maven-2.2.1-uber.jar
Number of imports: 10
import: org.codehaus.classworlds.en...@a6c57a42
import: org.codehaus.classworlds.en...@12f43f3b
import: org.codehaus.classworlds.en...@20025374
import: org.codehaus.classworlds.en...@f8e44ca4
import: org.codehaus.classworlds.en...@92758522
import: org.codehaus.classworlds.en...@ebf2705b
import: org.codehaus.classworlds.en...@bb25e54
import: org.codehaus.classworlds.en...@bece5185
import: org.codehaus.classworlds.en...@3fee8e37
import: org.codehaus.classworlds.en...@3fee19d8
-----------------------------------------------------
[INFO]
------------------------------------------------------------------------
[ERROR] BUILD ERROR
[INFO]
------------------------------------------------------------------------
[INFO] Internal error in the plugin manager executing goal
'org.apache.maven.plugins:maven-clean-plugin:2.2:clean': Unable to load the
mojo 'org.apache.maven.plugins:mavenclean-plugin:2.2:clean' in the plugin
'org.apache.maven.plugins:maven-clean-plugin'. A required class is missing:
org/apache/maven/shared/model/fileset/FileSet
[INFO]
------------------------------------------------------------------------
[INFO] For more information, run Maven with the -e switch
[INFO]
------------------------------------------------------------------------
[INFO] Total time: < 1 second
[INFO] Finished at: Sun Mar 21 19:05:24 IST 2010
[INFO] Final Memory: 2M/5M
[INFO]
------------------------------------------------------------------------



What could be the problem?


Thank you,
Maxim.

-- 
Cheers,
Maxim Veksler

"Free as in Freedom" - Do u GNU ?

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