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Thank you once again eskimo.I understand what's the problem.As I mentioned, I have 3 Web Services, 2 soap and the last only shoot a print, I do not expect data.I noticed, when the playground executes the line:let url = URL(string: "http://host/service")!that goes to consume web service and gets the output.When I test soap web services, I can see the output of URL and when test the web service that print, the result = nil.How can I run the printing service?Best regards,Victor.

Thank you so much for your reply Eskimo.I clone your code in my playground.I test 3 different web service, 2 respond correctly but other generate a issue (EXC_BAD_INSTRUCTION). I don't understand what's going on with the last web service.Playground showe me the issue in the line:let url = URL(string: "https://example.com")!What's the error? Does it take time for the URL instance to evaluate the service?Best regards,Victor.