Can't import keychain

I try to configure the keychain unsuccessfully.
I run the below in order to create the keychain & it seems to work fine.
security create-keychain -p [keychain_password] MyKeychain.keychain

Now according the post I read I need to Import the private key (*.p12) for my CodeSign identity:
So I ran the below:
security import MyPrivateKey1.p12 -t agg -k MyKeychaintest2.keychain -P test2 -A

I get the below error:
security: Error reading infile MyPrivateKey1.p12: No such file or directory

Any idea what am I missing?