一.Please sign in with an app-specific password. You can create one at appleid.
原因:賬號開啟了二重驗證,所以才導致在xcode上無法登陸
解決辦法:1.在Apple官網(wǎng)登陸你的賬號,在管理密碼的地方有一個Generate an App-Specific Password,生成專用密碼。

2.然后把這個密碼復(fù)制下來,在Xcode上重新登錄你的賬號同時在application loader 上登錄你的賬戶,不然會提示如下
ERROR ITMS-90034: "Missing or invalid signature. The bundle 'com.ShanghaiFenyin.BFGJS' at bundle path 'Payload/BFGJS.app' is not signed using an Apple submission certificate."