Building FOP Trunk with Ant - BUILD FAILED

Hi,

I am trying to build the FOP trunk (checked out with svn) with Ant and get the following error:

va:231: warning: [deprecation] toURL() in java.io.File has been deprecated
    [javac]                 urls.add(libFiles[i].toURL());
    [javac]                                     ^
    [javac] 26 warnings
    [mkdir] Created dir: C:\fop_trunk\trunk\build\sandbox-classes
    [javac] Compiling 11 source files to C:\fop_trunk\trunk\build\sandbox-classe
s

resourcegen:
    [mkdir] Created dir: C:\fop_trunk\trunk\build\codegen-classes
    [javac] Compiling 3 source files to C:\fop_trunk\trunk\build\codegen-classes

     [copy] Copying 2 files to C:\fop_trunk\trunk\build\codegen-classes

BUILD FAILED
C:\fop_trunk\trunk\build.xml:353: java.io.IOException: java.io.FileNotFoundExcep
tion: file:\C:\fop_trunk\trunk\build\gensrc\org\apache\fop\events\event-model.xm
l (The filename, directory name, or volume label syntax is incorrect)

Total time: 33 seconds

***************************

The C:\fop_trunk\trunk\build\gensrc\org\apache\fop\events folder is empty.

Any thoughts:?