Please describe the problem.
I had a repository in the transfer group that I wanted to move out of there and switch to manual.
I can't remove it from the transfer group.
What steps will reproduce the problem?
git annex group . transfer
git annex group . manual
git annex ungroup . transfer
What version of git-annex are you using? On what operating system?
anarcat@angela:video[1]$ git annex version
git-annex version: 10.20221003
build flags: Assistant Webapp Pairing Inotify DBus DesktopNotify TorrentParser MagicMime Benchmark Feeds Testsuite S3 WebDAV
dependency versions: aws-0.22.1 bloomfilter-2.0.1.0 cryptonite-0.29 DAV-1.3.4 feed-1.3.2.1 ghc-9.0.2 http-client-0.7.13.1 persistent-sqlite-2.13.1.0 torrent-10000.1.1 uuid-1.3.15 yesod-1.6.2.1
key/value backends: SHA256E SHA256 SHA512E SHA512 SHA224E SHA224 SHA384E SHA384 SHA3_256E SHA3_256 SHA3_512E SHA3_512 SHA3_224E SHA3_224 SHA3_384E SHA3_384 SKEIN256E SKEIN256 SKEIN512E SKEIN512 BLAKE2B256E BLAKE2B256 BLAKE2B512E BLAKE2B512 BLAKE2B160E BLAKE2B160 BLAKE2B224E BLAKE2B224 BLAKE2B384E BLAKE2B384 BLAKE2BP512E BLAKE2BP512 BLAKE2S256E BLAKE2S256 BLAKE2S160E BLAKE2S160 BLAKE2S224E BLAKE2S224 BLAKE2SP256E BLAKE2SP256 BLAKE2SP224E BLAKE2SP224 SHA1E SHA1 MD5E MD5 WORM URL X*
remote types: git gcrypt p2p S3 bup directory rsync web bittorrent webdav adb tahoe glacier ddar git-lfs httpalso borg hook external
operating system: linux x86_64
supported repository versions: 8 9 10
upgrade supported from repository versions: 0 1 2 3 4 5 6 7 8 9 10
local repository version: 9
Please provide any additional information below.
# If you can, paste a complete transcript of the problem occurring here.
# If the problem is with the git-annex assistant, paste in .git/annex/daemon.log
anarcat@angela:video$ git annex ungroup . transfer
git-annex: Specify a repository and a group.
anarcat@angela:video[1]$ git annex group .
manual transfer
anarcat@angela:video$ git annex ungroup ae3d62e6-49be-4340-ba25-c8736a1637c4 transfer
git-annex: Specify a repository and a group.
anarcat@angela:video[1]$ git annex ungroup .
git-annex: Specify a repository and a group.
anarcat@angela:video[1]$ git annex ungroup
git-annex: Specify a repository and a group.
anarcat@angela:video[1]$
# End of transcript or log.
I just can't figure out how to use the ungroup command, it seems.
Have you had any luck using git-annex before? (Sometimes we get tired of reading bug reports all day and a lil' positive end note does wonders)
Yes! I could have sworn this worked before too. 
unreproducible by submitter --Joey
That's weird. It does work for me:
That's with exactly the same version of git-annex too (10.20221003).
The "Specify a repository and a group." error is only displayed when there are not exactly 2 parameters. You seem to be providing exactly 2, but it seems we need to rule out the possibility that something (eg the shell, a wrapper program, or git) is causing some other number of parameters to be provided..
I'm sorry to say that the error went away after attaching a strace to it:
no idea wtf happened here, but i guess we can call this done? next time i'll try strace, sorry, i should have thought of it the first time.
Have you confirmed the problem no longer happens when not stracing as well? If it were say, some shell alias causing a problem, using strace would bypass it..