Environment: Coldfusion 9 on Windows
Solution: Login to Coldfuion 9 Administrator portal, Go to Server Settings > Caching, click on "Clear Template Cache Now" and "Clear Component Cache Now". This seems to trigger to re-compile of webservices WSDL thus fixed the problem.
- I don't know what is the root cause of this problem. Google turn-up some similar complains, but could not find any official answers on this
- The solution which required human interaction does not help in production environment
- The solution does not solve the problem permanently, sooner or later I'll hit the same error, and has to go back to the server and clear cache again