Sazzad Hissain Khan Sazzad Hissain Khan - 1 year ago 141
Swift Question

Type 'NSDictionary!' has no subscript members Swift - 3.0 conversion issue

I am getting this compiler error below after auto conversion from Swift 2 to Swift 3,

Type 'NSDictionary!' has no subscript members

I have seen similar question in this post, but still the solution is not supposed to work for NSDictionary.

Please let me know how to fix it.


fileprivate var allData:NSDictionary!;
open func getData(_ key:String) -> AnyObject?
return allData[key]; // error in this line

Answer Source

In Swift 3, the Value type of NSDictionary has been changed to Any. So the result type of subscript allData[key] is Any?, which cannot be automatically converted to AnyObject?.

Try this:

open func getData(_ key: String) -> AnyObject?
    return allData[key] as AnyObject?

But, if you use your allData as shown, why don't you declare it as [String: AnyObject] ?

And the error message... Better send a bug report.

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