问题
The certificate has an invalid issuer
Apple Certificate for IOS and Mac is not working all show they are expired but they not expired.
回答1:
For first you need clean you keychain.
Remove "Apple Worldwide Developer Relations Certification Authority" from all places. from System and Login tab
Download from apple.com Apple Worldwide Developer Relations Certification Authority
Double-click to AppleWWDRCA.cer install to Keychain.
Also, ensure that Keychain is showing expired certificates: Keychain > View > Show Expired Certificates
Enjoy !! :)
来源：https://stackoverflow.com/questions/35457958/apple-certificate-for-ios-developer-and-mac-developer-is-expired-the-certificat