It seems to not work with Mountain Lion and for some reason a new version wasn't included in ML and i can't find an update. I used it a lot for quick changes so I'm kind of missing it. Any suggestions?
Dyld Error Message:
Library not loaded: /System/Library/PrivateFrameworks/DotMacSyncManager.framework/Versions/A/DotMacSyncManager
Referenced from: /Developer/Applications/Dashcode.app/Contents/Frameworks/CYKit.framework/Versions/A/CYKit
Reason: image not found
I was having the same problem and couldn't run Dashcode under Mountain Lion, even though I was on Xcode 4.4. So, I just went to the https://developer.apple.com/downloads/index.action page and downloaded it from there and installed it and now it runs fine under ML.