At package time, Xcode: The issuer of this certificate is invalid missing IOS distribution signing identity

Problem description

Today you are ready to pack and upload AppStore, resulting in Xcode's following error:
Missing IOS Distribution signing identity for XXXXXX

When the certificate is viewed, both the develop certificate and the distribution certificate prompt that the issuer of this certificate is invalid.

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What is a APPLEWWDRCA certificate?

The search for data was discovered because Applewwdrca (Apple worldwide Developer Relations Certification authority) certificate expired.
The Applewwdrca certificate is actually an authorization authentication for an iOS certificate (that is, the develop certificate and the distribution certificate) whose public key is used to decrypt the authentication certificate.
iOS and Mac OS x systems (when installing Xcode) will automatically install Applewwdrca.cer (Apple Worldwide Developer Relations Certification authority) This intermediate certificate (intermediate certificates).

Problem solving

The Applewwdrca certificate needs to be updated.
1.https://developer.apple.com/certificationauthority/applewwdrca.cer Download the latest Applewwdrca certificate, double-click Install.
2. Open the keychain, select login, and then select the certificate below.
3. Select display in the upper left corner of the desktop → show expired certificates.
4. At this time you will find an expired "WWDR Certificate" (Apple Worldwide Developer Relations Certification authority), delete it.
Special note: Some in the system that column also has this expired "WWDR Certificate", also deleted it, not do not do processing.
5. Again, click Develop certificate and distribution certificate, no accident they become "This certificate is valid".

Transferred from: http://blog.csdn.net/ioshot/article/details/50669791

At package time, Xcode: The issuer of this certificate is invalid missing IOS distribution signing identity