The libs.CopyLibs.classpath property is not set up

Question

I\'m using Eclipse Indigo (3.7) to build an application using ant and a build.xml file.

I am getting the following exception:

Answer 1

1. In NetBeans, select Tools > Options > Miscellaneous > Ant
2. In the Properties section, add the following property

libs.CopyLibs.classpath=pathtoyour_netbeans/java/ant/extra/org-netbeans-modules-java-j2seproject-copylibstask.jar