ant的时候出错

[eviliw]

[ejbdoclet] --- Nested Exception ---
[ejbdoclet] Make sure the jar file containing the javax.ejb.EntityBean class is
on the classpath specified in the <taskdef> that defined ejbdoclet. These classe
s are needed in order to generate correct output.
[ejbdoclet] at xdoclet.DocletTask.checkClass(DocletTask.java:513)
[ejbdoclet] at xdoclet.modules.ejb.EjbDocletTask.validateOptions(EjbDocletTa
sk.java:83)
[ejbdoclet] at xjavadoc.ant.XJavadocTask.execute(XJavadocTask.java:89)
[ejbdoclet] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.ja
va:275)
[ejbdoclet] at org.apache.tools.ant.Task.perform(Task.java:364)
[ejbdoclet] at org.apache.tools.ant.Target.execute(Target.java:341)
[ejbdoclet] at org.apache.tools.ant.Target.performTasks(Target.java:369)
[ejbdoclet] at org.apache.tools.ant.Project.executeTarget(Project.java:1214)

[ejbdoclet] at org.apache.tools.ant.Project.executeTargets(Project.java:1062
)
[ejbdoclet] at org.apache.tools.ant.Main.runBuild(Main.java:673)
[ejbdoclet] at org.apache.tools.ant.Main.startAnt(Main.java:188)
[ejbdoclet] at org.apache.tools.ant.Main.start(Main.java:151)
[ejbdoclet] at org.apache.tools.ant.Main.main(Main.java:241)

BUILD FAILED
D:\roller-bak1\build.xml:112: Unexpected error

Total time: 9 seconds

该怎么办?

[eviliw]

全部错误是这样的:

gen-forms:
[mkdir] Created dir: D:\roller-bak1\build\generated\src.presentation
[mkdir] Created dir: D:\roller-bak1\build\generated\src.business
[mkdir] Created dir: D:\roller-bak1\build\generated\META-INF
[mkdir] Created dir: D:\roller-bak1\build\junk
[ejbdoclet] XDoclet classpath missing J2EE classes
[ejbdoclet] at xdoclet.modules.ejb.EjbDocletTask.validateOptions(EjbDocletTa
sk.java:86)
[ejbdoclet] at xjavadoc.ant.XJavadocTask.execute(XJavadocTask.java:89)
[ejbdoclet] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.ja
va:275)
[ejbdoclet] at org.apache.tools.ant.Task.perform(Task.java:364)
[ejbdoclet] at org.apache.tools.ant.Target.execute(Target.java:341)
[ejbdoclet] at org.apache.tools.ant.Target.performTasks(Target.java:369)
[ejbdoclet] at org.apache.tools.ant.Project.executeTarget(Project.java:1214)

[ejbdoclet] at org.apache.tools.ant.Project.executeTargets(Project.java:1062
)
[ejbdoclet] at org.apache.tools.ant.Main.runBuild(Main.java:673)
[ejbdoclet] at org.apache.tools.ant.Main.startAnt(Main.java:188)
[ejbdoclet] at org.apache.tools.ant.Main.start(Main.java:151)
[ejbdoclet] at org.apache.tools.ant.Main.main(Main.java:241)
[ejbdoclet] Caused by: Make sure the jar file containing the javax.ejb.EntityBea
n class is on the classpath specified in the <taskdef> that defined ejbdoclet. T
hese classes are needed in order to generate correct output.
[ejbdoclet] at xdoclet.DocletTask.checkClass(DocletTask.java:513)
[ejbdoclet] at xdoclet.modules.ejb.EjbDocletTask.validateOptions(EjbDocletTa
sk.java:83)
[ejbdoclet] ... 11 more
[ejbdoclet] --- Nested Exception ---
[ejbdoclet] Make sure the jar file containing the javax.ejb.EntityBean class is
on the classpath specified in the <taskdef> that defined ejbdoclet. These classe
s are needed in order to generate correct output.
[ejbdoclet] at xdoclet.DocletTask.checkClass(DocletTask.java:513)
[ejbdoclet] at xdoclet.modules.ejb.EjbDocletTask.validateOptions(EjbDocletTa
sk.java:83)
[ejbdoclet] at xjavadoc.ant.XJavadocTask.execute(XJavadocTask.java:89)
[ejbdoclet] at org.apache.tools.ant.UnknownElement.execute(UnknownElement.ja
va:275)
[ejbdoclet] at org.apache.tools.ant.Task.perform(Task.java:364)
[ejbdoclet] at org.apache.tools.ant.Target.execute(Target.java:341)
[ejbdoclet] at org.apache.tools.ant.Target.performTasks(Target.java:369)
[ejbdoclet] at org.apache.tools.ant.Project.executeTarget(Project.java:1214)

[ejbdoclet] at org.apache.tools.ant.Project.executeTargets(Project.java:1062
)
[ejbdoclet] at org.apache.tools.ant.Main.runBuild(Main.java:673)
[ejbdoclet] at org.apache.tools.ant.Main.startAnt(Main.java:188)
[ejbdoclet] at org.apache.tools.ant.Main.start(Main.java:151)
[ejbdoclet] at org.apache.tools.ant.Main.main(Main.java:241)

BUILD FAILED
D:\roller-bak1\build.xml:112: Unexpected error

Total time: 9 seconds
D:\roller-bak1>