QT安装 error: [QNetworkReply::NetworkError(

QT安装遇到问题：

[29040] Warning: No QtAccount credentials found. Please login via the maintenance tool of the SDK. [29040] Warning: No QtAccount credentials found. Please login via the maintenance tool of the SDK. [31404] Warning: Network error: [ QNetworkReply::NetworkError(AuthenticationRequiredError) ] "Authentication failed. 

解决：