我敢打赌你没有正确的代码签名设置.很容易错过的一个重要步骤是安装您的企业代码签名证书(您从赛门铁克获得)的父证书.具体来说，下载并导入以下两个证书，然后再次尝试对 XAP 文件进行签名.

I bet you don't have a proper setup for code signing. One important step that is easy to miss is to install the parent certificates of your enterprise code signing certificate (that you got from Symantec). Specifically, download and import the following two certificates and then try to sign the XAP file again.

https://knowledge.verisign.com/library/VERISIGN/ALL_OTHER/Symantec_Enterprise_Mobile_Root_for_Microsoft.cer一>https://knowledge.verisign.com/library/VERISIGN/ALL_OTHER/Symantec_Enterprise_Mobile_CA_for_Microsoft_Cert.cer

遗憾的是，签名工具没有报告任何错误，但输出的 XAP 不是 WP8 会接受的正确签名.

It is sad that the signing tool does not report any errors, yet the output is not a correctly signed XAP that WP8 would accept.