Swift Ambiguous reference to member

Question

I am using https://github.com/kylef/JSONWebToken.swift package for handling encoding and decoding of JWT.

I am on Swfit 3 and xcode 8.0.1. The problem that I am having is, after importing JWT into my controller file, when I call

JWT.encode(claims: ["my": "payload"], algorithm: .hs256("secret".data(using: .utf8)!))

The compiler complains:

Ambiguous reference to member 'encode(_:algorithm)'.

I then pressed command + click on the JWT.encode method and traced the method down and found out that the JWT.encode method actually referencing to the .encode method in MultipartFormData.swift of Alamofire.

I have imported both JWT and Alamofire.

Basically, the JWT and Alamofire MultipartFormData.swift both have a public method called encode, and I am calling it explicitly JWT.encode, why would it refer to the encode method in the Foundation library?

How should I fix it?

Thanks

score 3 · Accepted Answer · edited May 23 '17 at 10:30

3

Did you try to prefix the method name with the module? It should work according to this answer: https://stackoverflow.com/a/25232124/250164

EDIT: I think I figured it out. Your function signature is wrong, hence the encode method cannot be found. Use the following code instead, this seems to work for me:

JWT.encode(["my": "payload"], algorithm: .hs256("secret".data(using: .utf8)!))

edited May 23 '17 at 10:30

Community

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answered Dec 07 '16 at 23:27

Wolfgang Schreurs

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I am calling it by JWT.encode(). Is that what you mean? – Captain Rib Dec 07 '16 at 23:35
Perhaps it would be something like JWT.JWT.encode(). I would assume JWT is the module which contains a class JWT which has a method called encode. Something like that. – Wolfgang Schreurs Dec 07 '16 at 23:36
Well. I have almost tried almost all possibilities but it didn't work. – Captain Rib Dec 07 '16 at 23:47
Check the edit. I think I've found your fix by creating a small test project. If you still have an issue, I'll upload my test project to my GitHub for you to verify. – Wolfgang Schreurs Dec 08 '16 at 00:02

Swift Ambiguous reference to member

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