cygwinCygwinを起動した際に変なエラーが出ていた。 Your group is currently "passwd/group_GID_clash(gid/pgsid)". This indicates that your gid is not in /etc/group, but the pgsid (primary group associated with your SID) is in /etc/group. The /etc/passwd (and possibly /etc/group) files should be rebuilt. See the man pages for mkpasswd and mkgroup then, for example, run mkpasswd -l [-d] > /etc/passwd mkgroup -l [-d] > /e