e-utilities install file seems to be corrupted

I am trying to install e-utilities from the NCBI from this link. When I download the file source ./install-edirect.sh. This successfully installs the e-utilities, except I also get:

gzip: xtract.Linux.gz: invalid compressed data--format violated
Unable to download xtract executable.

gzip: transmute.Linux.gz: invalid compressed data--format violated
Unable to download transmute executable.

gzip: rchive.Linux.gz: invalid compressed data--format violated
Unable to download rchive executable.

Entrez Direct has been successfully downloaded and installed.

So I can’t use the xtract command. Is it that the file is corrupted or am I doing something wrong?