The parts you show in your screen shot are only warnings... no errors... you can ignore the warnings... the interesting parts are the errors
Since you have more then 100 errors I assume you have some kind of path problem to the library files... can you try to run ant in the c:\1\build directory. I think the build script is using relative paths from the build directory.

__________________

I copied the ant files to the build dir. Then it also gives the same error.

Like I said... please post the error... not the warning... you can ignore the warning.
Do you use a SVN version?

__________________