Error by building JBoss Portal from source

[mifa]

I try to build a portal from source. At compilation I get an error:

C:\Entwicklung\jboss-portal-2.4.0-src\build>ant
...
BUILD FAILED
C:\Entwicklung\diplom\jb2.4trunk\build\build.xml:356: The following error occurred while executing this line:
C:\Entwicklung\diplom\jb2.4trunk\build\build-thirdparty.xml:117: A versioning problem exists:
Component: javassist is at version: 3.3.0.GA
 but it is also required to be compatible with: [Compatible@15ac3c9{id=null, version=3.2.0.CR1}, Compatible@1ebd75b{id=null, version=3.2.0.CR2}, Compatible@87c268{id=null, version=3.2.0.GA}]
 by: jboss/jbossretro-rt

Total time: 17 seconds
C:\Entwicklung\diplom\jb2.4trunk\build>

What is wrong here?
(I use java version 1.4.2; with version 1.5 is the same; ant version 1.6.5)

[peterj]

I just now build 2.4 from scratch and it built fine.

Do this. Look at the META-INF/Manifest.mf file in thirdparty/javassist/lib/javassist.jar and verify that it is the 3.2 version.

Then look for where you have the 3.3 version of javassist installed. For example, as part of a classpath (not likely, the build sets its own classpath), or in your Java endorsed directory (highly likely). If the file is in your endorsed directory, remove it.

[mifa]

Thank you Peter :)

I have one more time builded the portal. This time all without error. I do not know why from the beginning so it has turned out.
The build has any stochastic character. I in general changed nothing, have simply entered command one more time.
In any case works.