I tried to upload a package called "oath". However I got the following error message:
cabal upload --publish dist-newstyle/sdist/oath-0.0.tar.gz
hackage.haskell.org username: FumiakiKinoshita
hackage.haskell.org password:
Uploading dist-newstyle/sdist/oath-0.0.tar.gz...
Error uploading dist-newstyle/sdist/oath-0.0.tar.gz: http code 403
Error: Upload failed
You are not authorised to upload new versions of this package. The package
'oath' exists already and you are not a member of the maintainer group for
this package.
If you believe you should be a member of the maintainer group for this
package, then ask an existing maintainer to add you to the group. If this is a
package name clash, please pick another name or talk to the maintainers of the
existing package.