当我使用Xcode 9.0下载模拟器(Xcode - Preferences - Components - Simulator)时,它将显示“无法下载和安装iOS 8.1模拟器。此服务器的证书无效。您可能正在连接到一个假装是”devimages.apple.com.edgekey.net“的服务器,该服务器可能会危及您的机密信息。”

更详细的问题
我发现我可以下载iOS10.0及以上版本的模拟器,但不能在iOS 10.0下面下载模拟器。如你所见:

我尝试过这样的解决方案:

/Users/Andy/Library/Caches/com.apple.dt.Xcode/Downloads)Xcode-Preferences下载并安装模拟器。发布于 2017-09-27 07:14:01
似乎网络问题,您可以检查日志和下载相关的.dmg文件通过浏览器。见日志:
sudo /Applications/Xcode.app/Contents/MacOS/Xcode
Password:
2017-09-27 09:35:05.531 Xcode[24753:3375917] plugin com.apple.dt.XCDocumenter.XCDocumenterExtension interrupted
2017-09-27 09:35:05.567 Xcode[24753:3376388] Hub connection error Error Domain=NSCocoaErrorDomain Code=4097 "connection to service named com.apple.dt.XCDocumenter.XCDocumenterExtension" UserInfo={NSDebugDescription=connection to service named com.apple.dt.XCDocu
), NSUnderlyingError=0x7fb6702b4c00 {Error Domain=kCFErrorDomainCFNetwork Code=-1202 "The certificate for this server is invalid. You might be connecting to a server that is pretending to be “devimages.apple.com.edgekey.net” which could put your confidential information at risk." UserInfo={NSErrorFailingURLStringKey=https://devimages.apple.com.edgekey.net/downloads/xcode/simulators/com.apple.pkg.iPhoneSimulatorSDK9_2-9.2.1.1451951473.dmg, NSLocalizedRecoverySuggestion=Would you like to connect to the server anyway?, _kCFNetworkCFStreamSSLErrorOriginalValue=-9813, kCFStreamPropertySSLPeerCertificates=(
    "<SecCertificate 0x7fb674e40f80 [0x7fff78314440]>",
    "<SecCertificate 0x7fb674ef4770 [0x7fff78314440]>"
), _kCFStreamPropertySSLClientCertificateState=0, kCFStreamPropertySSLPeerTrust=<SecTrust 0x7fb674da1550 [0x7fff78314440]>, NSLocalizedDescription=The certificate for this server is invalid. You might be connecting to a server that is pretending to be “devimages.apple.com.edgekey.net” which could put your confidential information at risk., _kCFStreamErrorDomainKey=3, NSErrorFailingURLKey=https://devimages.apple.com.edgekey.net/downloads/xcode/simulators/com.apple.pkg.iPhoneSimulatorSDK9_2-9.2.1.1451951473.dmg, _kCFStreamErrorCodeKey=-9813}}, NSLocalizedDescription=The certificate for this server is invalid. You might be connecting to a server that is pretending to be “devimages.apple.com.edgekey.net” which could put your confidential information at risk., NSErrorFailingURLKey=https://devimages.apple.com.edgekey.net/downloads/xcode/simulators/com.apple.pkg.iPhoneSimulatorSDK9_2-9.2.1.1451951473.dmg, NSErrorFailingURLStringKey=https://devimages.apple.com.edgekey.net/downloads/xcode/simulators/com.apple.pkg.iPhoneSimulatorSDK9_2-9.2.1.1451951473.dmg, NSErrorClientCertificateStateKey=0}
2017-09-27 10:05:14.344 Xcode[24909:3382580] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813)
2017-09-27 10:05:14.513 Xcode[24909:3382580] NSURLSession/NSURLConnection HTTP load failed (kCFStreamErrorDomainSSL, -9813).dmg文件移动到com.apple.dt.Xcode/Downloads目录。要执行此操作,请在finder中打开~/Library/Caches,并显示com.apple.dt.Xcode并转到Downloads。注意: com.apple.dt.Xcode不是真正的“目录”。是个包裹。但是我们仍然可以通过右键单击文件并单击“显示包内容”来访问它的内容。
Xcode->Preferences->Component并单击相关模拟器以继续安装已下载的文件可选:如果Xcode仍然导致私有连接错误,请重新启动Xcode&请执行步骤3。
发布于 2017-10-01 19:08:25
实际上,我找到了另一种方法,如果您可以更新您的证书信任设置。浏览到Safari中的https://devimages.apple.com.edgekey.net/downloads/xcode/simulators。你会看到这个:

如果您点击“访问此网站”,它将提示您更新您的证书信任设置管理凭据。完成此操作后,下载链接将在Xcode中正常工作。
发布于 2017-09-27 06:57:53
几个月前,我也有过同样的问题,问题是我的网络(在我的例子中,各种网站的访问在办公室被封锁)。
我切换到另一个网络并下载必要的模拟器。(我的同事也有同样的问题,以上解决方案也是如此)
尝试,更改您的网络,并确保您没有连接到任何代理服务器。
希望这能帮到你。
https://stackoverflow.com/questions/46439970
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