good afternoon, thanks for answering, i solve part of the problem, I do not have a raspberry then emule the software in virtualbox, as it did not work with the solution, I thought the problem could be the emulated system "raspbian" decided to install a ubuntu mate and there if everything worked perfectly, I think it could be user restrictions, I have a hosting where they have enabled node.js that does not work either, they must restrict access to third parties, I would believe, but anyway, it worked and hopefully when I have the raspberry work, I think I will install in it ubuntu mate too, thank you very much for your help, help me a lot, greetings from Colombia