Java Programming

Hi all

i am learning Ant build tool as it is required in our project.i am encountering a typical problem while compiling.i will let you know what i am trying to do.

I have written a simple java program.i am trying to write build.xml(hello.xml in my case) for this program.but when i try to compile build.xml with command prompt using the command ant -f hello.xml compile i am getting the following error.

build failed
IO error scanning directory D:\System Volume Information

i have kept all source files in D:\ directory directly.

Please let me know if you have any solution for the same.

regards
vikeng