maven-archetype-webapp 创建不了.

apache-maven-3.1.1

conf.xml只是改了仓库路径

用 maven-archetype-quickstart 就可以 换了 maven-archetype-webapp 就不行

直接用mvn cmd运行和在IDE里面都是如此

请问为何呢

"C:\Program Files\Java\jdk1.7.0_03\bin\java" -Dmaven.home=E:\workspaces\apache-maven-3.1.1 -Dclassworlds.conf=E:\workspaces\apache-maven-3.1.1\bin\m2.conf -Dfile.encoding=UTF-8 -classpath E:\workspaces\apache-maven-3.1.1\boot\plexus-classworlds-2.5.1.jar org.codehaus.classworlds.Launcher -s E:\workspaces\apache-maven-3.1.1\conf\settings.xml -DinteractiveMode=false -DgroupId=web1 -DartifactId=web1 -Dversion=1.0-SNAPSHOT -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeArtifactId=maven-archetype-webapp -DarchetypeVersion=RELEASE org.apache.maven.plugins:maven-archetype-plugin:RELEASE:generate
[INFO] Scanning for projects...
[INFO]                                                                         
[INFO] ------------------------------------------------------------------------
[INFO] Building Maven Stub Project (No POM) 1
[INFO] ------------------------------------------------------------------------
[INFO] 
[INFO] >>> maven-archetype-plugin:2.2:generate (default-cli) @ standalone-pom >>>
[INFO] 
[INFO] <<< maven-archetype-plugin:2.2:generate (default-cli) @ standalone-pom <<<
[INFO] 
[INFO] --- maven-archetype-plugin:2.2:generate (default-cli) @ standalone-pom ---
[INFO] Generating project in Batch mode
[INFO] Archetype repository missing. Using the one from [org.apache.maven.archetypes:maven-archetype-webapp:1.0] found in catalog remote
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 23.180s
[INFO] Finished at: Sun Mar 16 15:33:00 CST 2014
[INFO] Final Memory: 11M/111M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:2.2:generate (default-cli) on project standalone-pom: null: MojoFailureException: NullPointerException -> [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/MojoFailureException
[ERROR] Maven execution terminated abnormally (exit code 1)