I used the "Git Flow" button in Sourcetree to initialize my repository and successfully started a feature. But when I click Git Flow / Finish Current, choosing "rebase on development" and "delete branch," I get the error, "git: 'flow' is not a git command. See 'git --help'."
This does not happen if I don't choose "rebase." Then it properly finishes the feature and merges it into my develop branch.
This does happen whether I use the embedded git or the system git. git-flow is installed on my command line and in my path:
$ which git-flow
/usr/local/bin/git-flow
What is wrong here?