Xcode 7 compile error : “Command failed due to signal: Segmentation fault: 11”

Question

Yesterday I installed the official Xcode 7 and when I tried to open one of my Swift projects, appeared an alert saying that the new Xcode version wants to update my swift co

Answer 1

In my case, the cast I had to correct was similar to Murat Yasar answer ( https://stackoverflow.com/a/36867502/512403 ), but mine had two parts to correct. The compiler didn't work with the original fix, so I had to tweak my code still a bit more:

Bad version:

let jsonObject: AnyObject? = try NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments)

Good version:

let jsonObject = try? NSJSONSerialization.JSONObjectWithData(data!, options: NSJSONReadingOptions.AllowFragments) as! [String: AnyObject]

Maybe this can help someone new to these quirks of Swift.