Could not find member 'Value'

[Justin Bane]

So this works everywhere I have used it before. I have wiped and remade my controller twice.

This code is throwing an error "Could not find member 'Value'" in XCode.

var identifierRef = ref.childByAppendingPath(identifier)

identifierRef.observeEventType(.Value, withBlock: { (snapshot) -> Void in

    self.cellLineLbl.text = snapshot.value.objectForKey("misidentified-cell-line")

})

It is referring to the .Value in the observeEventType call. Not a clue what to do here. This controller is being presented modally is the only difference AND yes I have my "let ref = ..." at the top of the class.

Any help or has anyone had this happen before? Nothing I do gets around it. I am completely stuck.

[Justin Bane]

Sorry btw this is iOS Swift.

[Thomas Bouldin]

Sorry for the late reply. I hope you've already found this out, but Swift sometimes has trouble inferring types when a function has many overloads and the compiler error it gives you isn't always obvious.

Try using an alternate or more explicit block syntax. I tend to either write:

query.observeEventType(.Value, withBlock: { (FDataSnapshot snapshot) -> Void in

  //...

})

or

query.observeEventType(.Value, withBlock: { snapshot in

  //...

})

[Justin Bane]

Thomas, thanks for the reply... I did find that being more explicit in the block definition got the compiler error to go away.

Thanks!

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Justin Bane
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