The error message after uploading the P12 certificate is: The password does not meet the requirements. How can this be resolved?

There are two reasons for this problem:

1. Really entered the wrong password (small probability)

2. When creating the P12 file, if no mac computer is used to create the OpenSSL certificate, the 1.x version needs to be selected. Some users use the 3.x version (the probability is high).