The private key was not properly encrypted or is not a type of key we support

Question

When I upload my zip file in Google Play Console, it is not accepted. What did I do I see this notification?

The private key was not properly encrypted or is not a type of key we support.

Answer 1

Every time you open the page or maybe download the new PEM file it GENERATES A NEW ONE and apparently invalidating the old one.

So if you are struggling to create a private key and accidently press the button again, I think your old PEM file is not valid anymore.

So the conclusion is: you have to do it in one go.

Answer 2

I also encountered this error, the reason is very simple but it took me a lot of time, private key file only need to upload once, instead the second upload will report this error, I have suggested Google to change this error description, too confusing.