How can I "attach a repository" to project pharo?

In a fresh pharo 7 image I get this message on clicking the "history" button on a method in calypse:

grafik.png

btw, the "atttached" has three t's :)

And wouldn't it be better, to show an error dialog instead of a debugger stacktrace, if we try to show the history without an repository.

nicolai