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aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=jfxqOcgE; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Spam-Score: -3.73 Authentication-Results: aspmx1.migadu.com; dkim=fail ("headers rsa verify failed") header.d=gnu.org header.s=fencepost-gnu-org header.b=jfxqOcgE; dmarc=pass (policy=none) header.from=gnu.org; spf=pass (aspmx1.migadu.com: domain of "bug-guix-bounces+larch=yhetil.org@gnu.org" designates 209.51.188.17 as permitted sender) smtp.mailfrom="bug-guix-bounces+larch=yhetil.org@gnu.org" X-Migadu-Queue-Id: 3F4D5F23F X-Spam-Score: -3.73 X-Migadu-Scanner: scn0.migadu.com X-TUID: Ynd/9Hid6NEN Hi! Maxim Cournoyer scribes: > and the channels.scm file: > > (list (channel > (inherit %default-guix-channel) > (commit > "ceeb2bfcaeb4380e01d26c8425e28b94ac13558a"))) ;2022-06-07 > > > and was surprised to be greeted with the following error: > > (repl-version 0 1 1) > (exception %exception (non-self-quoting 140737300283024 "#<&message messa= ge: \"unsupported manifest format\">")) > /var/log/guix/drvs/j8/0wjfx7s7nxhcn0wjxfysnnv2knx0c1-guix-package-cache.d= rv (END) > > What does it mean? Which manifest is it referring to? Commit 4ff12d1de7cd617b791996ee7ca1240660b4c20e introduced that bug, which was fixed in c9fbd40785a99e13a59d8e530830ce85220a9871: https://issues.guix.gnu.org/56441 =E2=80=98guix describe=E2=80=99 should show that you=E2=80=99re using a com= mit in that range. The solution is to run =E2=80=98time-machine=E2=80=99 from a commit outside= that range, for instance with: guix time-machine -- time-machine -C channels.scm -- whatever :-) Ludo=E2=80=99.