I've just started to use IDEA (9.0.3) and I faced a problem with maven dependencies. I can build the project using maven task and everything is ok but IDEA editor can't see any of maven dependencies. For example I've line of code:
but it's marked in red with error 'Cannot resolve symbol ...'. Maven downloaded log4j lib correctly, I can see it in IDEA in project view, as one of external libraries, I can find the class using ctrl+shift+n but editor can't recognize it.