What are the ant build instructions for jSymbolic?

I got these exceptions while building via ant, I cant figure out what do to with them. I see the libraries defined in Third_Party_Jars but adding them to classpath does not help. What are the exact build instructions for jSymbolic build?

[javac] ^
[javac] symbol: class WebSearchRequest
[javac] location: class YahooWebSearch
[javac] /home/asanyal/git_projects/jMIR/jMIR/UtilityClasses/src/mckay/utilities/webservices/YahooWebSearch.java:229: error: cannot find symbol
[javac] WebSearchResults query_results = search_client.webSearch(request);
[javac] ^
[javac] symbol: class WebSearchResults
[javac] location: class YahooWebSearch
[javac] /home/asanyal/git_projects/jMIR/jMIR/UtilityClasses/src/mckay/utilities/webservices/YahooWebSearch.java:230: error: cannot find symbol
[javac] WebSearchResult[] query_results_array = query_results.listResults();
[javac] ^