I\'ve just opened existing project in xcode 6 beta. But it\'s crash with following error message.
dyld: problem loading iOS simulator dyld 2014-06-05 11:15:0
According to @ThePaddedCell, I did the following steps, it's finally worked for me
1) Move xcode6-beta into application folder
Move
2) Restart mac and open xcode6-beta from application folder.
Restart
but I don't know why.. If anyone know this reason, welcome to update my answer.