What you have posted are internal properties which are used by the installer framework for error message popups in the GUI that get dumped at the end of the failed install. Many people have confused these as actual the error message when in fact the root cause occurs far earlier in the log, so these messages are a distraction. You should post the full log as suggested by other members.
Sometimes, if when the install hangs and you leave the error dialog open waiting for you to click ok, you can go to the log at that time and it should be the precise error. Once you accept the error click "Ok" the installer will run a rollback sequence which will output a lot more into the log which is probably of no interest like these model manager messages.