Getting error incorrect password on google console in firebase

I have created .p12 developer(No password) push cert by exporting Apple development ios push certificate (selected private key also).

I am using firebase push notification, while uploading .p12 file on Firebase its showing incorrect password,

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  • I have also created another .p12 with password but getting same error on Google console, Why so?

    As of this SO answer which uses only certificate part of .p12-Yes it uploaded successfully but i am not getting push notification from this method.
    Anyone faced the same?