Which expansions should not be used together in Carcassonne?
I made games with this expansions.

Base Game, Inns and Cathedrals, Traders and Builders, Princess and the Dragon, The Tower, Abbey &amp; Mayor, Count, King &amp; Robber; Bridges, Castles &amp; Bazaars and wheel of fortune.

And all worked fine together, the most important are: 1. the game can have 4 or 5 hours long and 2. beware when the fields with barn are unexpectedly joined under some bridge.