If you get the error “Another program has already opened a LocalConnection with id ‘_flexcover’. No coverage data will be recorded.”, do the following:
- Open Task Manager and kill any instances of CoverageViewer.exe (or your Mac equivalent).
- Close all browsers.
- Close FlexBuilder.
- Close Yahoo! Messenger (or other client that hosts the Flash Player).
#3 did it for me.
I was using FlexCover 0.81.