Maven-ant-task用不起来？

tclwp

eclipse 3.4.2

Problem: failed to create task or type antlibrg.apache.maven.artifact.ant:pom
Cause: The name is undefined.
Action: Check the spelling.
Action: Check that any custom tasks/types have been declared.
Action: Check that any <presetdef>/<macrodef> declarations have taken place.

This appears to be an antlib declaration.
Action: Check that the implementing library exists in one of:
        -F:\eclipse-jee-ganymede-SR2-win32\eclipse\plugins\org.apache.ant_1.7.0.v200803061910\lib
        -C:\Documents and Settings\user022\.ant\lib
        -a directory added on the command line with the -lib argument

我已经放了一个 Maven-ant-task 在F:\eclipse-jee-ganymede-SR2-win32\eclipse\plugins\org.apache.ant_1.7.0.v200803061910\lib目录下，为什么还是找不到呢？

tclwp

原来在EDIT Configration显式加入这个JAR包就可以了