Is not a valid method for this service

Is not a valid method for this service: when a third party updates the webservice, the wsdl path remains unchanged, but some new methods are added. Our system has been using some third-party webservice services before. After the third-party webservice Service is updated, we have also updated our programs and used the latest interfaces. When www.2cto.com passes the local test and is sent to the production environment, the following problem is thrown: Function ***** is not a valid method for this service. this means that the called method does not exist in this webservice. After multi-party queries, the reason is that the Web Service wsdl file used in linux will be cached. When the webservice Service is called, the file will be read from the cache, leading to the above error. Solution: Find the/tmp/directory and delete all the files starting with wsdl in the directory.