[Solved] ‘NSInvalidArgumentException’, reason: ‘Invalid type in JSON write (_SwiftValue)’ with alamofire swift3
I’ve encountered following error while uploading Swift3 using XCode8.
‘NSInvalidArgumentException’, reason: ‘Invalid type in JSON write
let param: Parameters = [ "email":txrNRC.text as AnyObject, "password":txtPassword.text as AnyObject ]
Please let me know how to solve that issue. I’ve already tried with
let param: NSDictionary but got same error message.
First of all in Swift 3 the Objective-C equivalent of
Any rather than
AnyObject, that avoids also the
The error message indicates that an illegal type is used (
Parameters), JSON supports only
In your case the dictionary is
[String:String], a type annotation is not needed at all
let param = [ "email" : txrNRC.text, "password" : txtPassword.text ]
txtPassword are optionals you need to unwrap them or use the nil coalescing operator to assign a placeholder if the value is