Rosetta 2 installation on M1 MBP fails

I'm trying to install rosetta 2 via command line, using this command:

/usr/sbin/softwareupdate --install-rosetta

Source: https://derflounder.wordpress.com/2020/11/17/installing-rosetta-2-on-apple-silicon-macs/ **The problem:** I'm receiving this error:

softwareupdate[981:12251] Package Authoring Error: 001-79711: Package reference com.apple.pkg.RosettaUpdateAuto is missing installKBytes attribute

**Terminal screenshot:** **The question:** How can I get rid of this error and install rosetta 2 properly?