I had followed the instructions in TechNote 304808 (How to renew a
signed certificate that has not expired) and exported the private and
public keys related to the existing certificate. I had already
obtained the new certificate so I skipped the parts relating to
creating a Certificate Signing Request.
Now, I've deleted the old certificate, saved changes, but now I
cannot import the new certificate. I Googled the error and received
two hits but they didn't seem helpful for my situation. Any ideas?