use maven-antrun-plugin

[張旭]

i'm trying to build a dojo release use maven2, i use maven-antrun-plugin as
following:
......
<build>
   ......
   <plugins>
     <plugin>
       <groupId>org.apache.maven.plugins</groupId>
       <artifactId>maven-antrun-plugin</artifactId>
       <executions>
         <execution>
           <phase>compile</phase>
           <configuration>
             <tasks>
               <ant dir="src/main/javascript/dojo/release-0.4.2/buildscripts"
target="release">
                 <property name="docless" value="true"/>
                 <property name="profileFile"
value="src/main/javascript/profiles/my.profile.js"/>
               </ant>
             </tasks>
           </configuration>

           <goals>
             <goal>run</goal>
           </goals>
         </execution>
       </executions>
     </plugin>
   </plugins>
 </build>
....

when i trying 'mvn compile' i got a :
....
Embedded error: The following error occurred while executing this line:
F:\works\flexstudio-dojoext\src\main\javascript\dojo\release-
0.4.2\buildscripts\build.xml:535: Could not create task or type of type:
script.
Ant could not find the task or a class this task relies upon.
.....

can anybody help me? thx a lot