can not build with maven 1.1 beta 1

[Janos Mucsi]

Hi
I am getting the following error when building a simple a module:
 
BUILD FAILED
File...... C:\Documents and Settings\jmucsi\.maven\cache\maven-artifact-plugin-1
.5.2\plugin.jelly
Element... artifact:artifact-install
Line...... 62
Column.... -1
org.apache.maven.project.Dependency.setProperties(Ljava/util/List;)V
Total time   : 3 seconds
Finished at  : Thursday, June 30, 2005 11:07:40 PM PDT
 
Any ideas?
 
thanks.
 
Janos