Swift compiler segmentation fault when building

This error happened to me when I tried to override weak variable from parent class.

In base class:

weak var stripeViewDelegate : StripeViewDelegate? = nil


Derived class:

override weak var stripeViewDelegate : StripeViewDelegate? = nil {
didSet {
self.stripeView.delegate = stripeViewDelegate

}
The error disappeared when I removed `=nil` from derived class.

In my case, a misplaced colon during string interpolation broke mine (XCode 6.1.1).

Example:

<!-- language: swift -->

println("\(value1:value2)")

when I meant to do:

<!-- language: swift -->

println("\(value1) : \(value2)")

I had a compiler segmentation fault on a statement like this:

someFunction(isFlagged ? "String1" : "String2")

I just did a if-else statement instead and it works.

I had this error because I was doing this :

if(currentMeal?.State == .Deleted){

}

instead of

if(currentMeal!.State == .Deleted){

}

so I think optional not unwrapped in if condition can cause this error

I’ve discovered a simple workaround until the problem is fixed in a future Xcode/Swift build:

- Simply place all extensions causing the issue in the `.swift` file that it’s being used.

_In the example project you provided, place the contents of_ `UIViewExtension.swift` _and_ `CALayerExtension.swift` _above_ `AppDelegate.swift`

Hopefully this can get us to write _working_ Swift code until the problem’s cleared up.