I'm having trouble updating an old version of AFNI on an iMac running 10.12.6.
I downloaded a recent version of @update.afni.binaries from [afni.nimh.nih.gov] and get the following error. Grateful for any help.

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>> @update.afni.binaries -defaults -package macos_10.12_local
-- have AFNI binaries under /Users/mworden/abin
-- install dir: using existing /Users/mworden/abin
-- attempting to install package macos_10.12_local under
install dir: /Users/mworden/abin...
-- have install dir
nuking old temporary directory...
++ working in new temp dir, .tmp.install
++ getting install prog macos_10.12_local/@update.afni.binaries ...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 262 100 262 0 0 2333 0 --:--:-- --:--:-- --:--:-- 2339
** failed, trying linux_openmp_64/@update.afni.binaries ...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 260 100 260 0 0 5347 0 --:--:-- --:--:-- --:--:-- 5416
** failed again, skipping check for new installer
++ downloading test file macos_10.12_local/afni ...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 245 100 245 0 0 5276 0 --:--:-- --:--:-- --:--:-- 5212

++ update needed, installing...

++ downloading full macos_10.12_local.tgz package...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
100 244 100 244 0 0 5010 0 --:--:-- --:--:-- --:--:-- 5083
++ extracting package macos_10.12_local...

gzip: stdin: not in gzip format
tar: Child returned status 1
tar: Error is not recoverable: exiting now
** failed to extract package macos_10.12_local.tgz