<div dir="ltr"><div><div><div><div>Hi,<br><br></div>I built doc/html/boost_asio/example/timeouts/blocking_udp_client.cpp on Debian Jessie, but when I run it, I got Invalid argument on the statement of udp::endpoint listen_endpoint( boost::asio::ip::address::from_string(argv[1]), std::atoi(argv[2]));<br><br></div>To simplify it, I changed to:<br>udp::endpoint listen_endpoint( boost::asio::ip::address::from_string(&quot;localhost&quot;), 15555);<br><br></div>Appreciate any clues what&#39;s wrong with that statement and why it caused invalid argument?<br><br></div>Thank you.<br><div><br><br></div></div>