Hi all , I found :-)  When  Marius said : "did you purposefully disable substitutes?" I understand that was a network problem. on this VM i have two network with one without internet access, it's was the problem. Merci. Pierre On 10/24/19 8:57 PM, Marius Bakke wrote: > Jack Hill writes: > >> On Thu, 24 Oct 2019, Marius Bakke wrote: >> >>> Hello Pierre, >>> >>> pirboazo writes: >>> >>>> for several days I can no longer update my system. >>>> >>>> with the last guix : 4c46356 >>>> The update fails during the check phase of the jimtcl-0.77 package. >>> Where is this package from? I can not find it in Guix. >> I believe this is >> https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/packages/embedded.scm?id=4c463569b7af3ee064d323691bc0284155f9a85d#n331 > Whoops, indeed. > > There does not seem to be any problems on the CI: > > https://ci.guix.gnu.org/search?query=jimtcl > > Pierre: can you run `guix build jimtcl` and paste the last lines of the > output? Also, did you purposefully disable substitutes? Normally Guix > would transparently download a pre-built package from the CI system.