Apple development certificate to export P12 problem

Yesterday test push, Aurora push need to upload development certificate and Production certificate, Aurora only accept the P12 file format certificate, use the developer account to generate a certificate The first step is to use: Keychain-"certificate assistant-" to request a certificate from a certification authority

I put the certificate directly on the disk, and the common name is not filled in, and the last generated CER certificate is imported into the keychain like this:

Always export P12 files cannot be exported

In the first step when the name is required to fill in, you can find the keychain visitors just fill out the private key

Right-click to export the P12 file, I exported it yesterday after adding directly to the Aurora push official online add failed, then I directly double-click the P12 file installed to my keychain

Then I can directly export the P12 file, after the test push successfully received a push message,,, there may be said wrong place, welcome to correct