Important Change Required for Haiku Nightly and R1/Beta2 Users | Haiku Project

(I’m relatively new to Haiku - used BeOS a bit back in the 90s.)

When I tried to follow the instructions from here, I got the following:

~> pkgman drop-repo HaikuPorts
Removing repository HaikuPorts ...
Really remove the repository 'HaikuPorts'? [yes/no] (no) : yes
Error: Unable to unarchive repository info!
~> pkgman add-repo https://eu.hpkg.haiku-os.org/haikuports/master/$(getarch)/current
Fetching repository info from https://eu.hpkg.haiku-os.org/haikuports/master/x86_64/current ...
Activating repository config from https://eu.hpkg.haiku-os.org/haikuports/master/x86_64/current ...
Error: Unable to unarchive repository info!
Fetching repository checksum from https://eu.hpkg.haiku-os.org/haikuports/master/x86_64/current ...
Validating checksum for HaikuPorts ...
~> pkgman list-repo
        Haiku
                base-url:  https://eu.hpkg.haiku-os.org/haiku/r1beta2/x86_64/current
                identifier: https://hpkg.haiku-os.org/haiku/r1beta2/x86_64/current
                priority:  1
        HaikuPorts
                base-url:  https://eu.hpkg.haiku-os.org/haikuports/master/x86_64/current
                identifier: tag:haikuports.org,2013:repositories/haikuports/master/x86_64
                priority:  1

And when I try to run SoftwareUpdater I get an error “Failed to get cache for repo HaikuPorts”.

I had installed it from the Haiku R1/Beta2 x86_64 image using VMWare Fusion.

Am I missing a step?