Eclipse tomcat error: "The filename, directory name, or volume label syntax is incorrect"?

While running servlet using tomcat in Eclipse Helios, I kept on getting an error, "the filename, directory name, or volume label syntax is incorrect". What is this due to? Plz help me out to solve this problem. I'm using JDK 7 and Apache Tomcat 7 for server under Eclipse helios. Please let me know if you need additional information from my side.