던전 크롤 해볼려고 설치하려 했더니



ck@ck-XD140-ND10K:~$ sudo apt-get install crawl

Reading package lists... Done

Building dependency tree       

Reading state information... Done

Some packages could not be installed. This may mean that you have

requested an impossible situation or if you are using the unstable

distribution that some required packages have not yet been created

or been moved out of Incoming.

The following information may help to resolve the situation:


The following packages have unmet dependencies:

 crawl : Depends: libstdc++6 (>= 4.9) but 4.8.2-19ubuntu1 is to be installed

E: Unable to correct problems, you have held broken packages.


4.8.2 있어야 된다고 안됨. 다운그레이드 같은건 안돼?