我在防火墙后面时遇到了这个问题.我通过转到 Xcode > Contents > Applications > Application Loader > Contents > MacOS > itms > java > lib - 使用 TextEdit 打开 net.properties 并更改行来解决它# https.proxyPort=443https.proxyPort=80.这使应用程序能够将 HTTP 端口用于 HTTPS.此后立即工作.希望这可以帮助.

I had this problem when behind a firewall. I got around it by going to Xcode > Contents > Applications > Application Loader > Contents > MacOS > itms > java > lib - Open net.properties with TextEdit and change the line # https.proxyPort=443 to https.proxyPort=80. This enables the application to use the HTTP port for HTTPS. Worked straight away after this. Hope this helps.