Forum OpenACS Q&A: Response to current release broken (tar checksum error)

I did download openacs-4-5-beta-1.tgz from https://openacs.org/sdm/one-package-release.tcl?release_id=52 as well as the one from https://openacs.org/software.

the unzipped tar file is 45895680 bytes length but I allways get: 'tar directory checksum error'. the cksum is 279303383. I did try on two different Solaris systems and in various directories!