Swift 3 Error:Argument Labels '(_:)' Do Not Match Any Available Overloads

swift 3 error : Argument labels '(_:)' do not match any available overloads

You can do it this way:

public func currencyString(_ decimals: Int) -> String {

    let formatter = NumberFormatter()
    formatter.numberStyle = .currency
    formatter.maximumFractionDigits = decimals
    return formatter.string(from: NSNumber(value: decimals))!
}

Because if you check NSNumber you will get predefined init like:

public init(value: Int)

Argument labels do not match any available overloads swift

As @vadian said, code completion would help you. This is what I got from duplicating a fragment in Playground:

func write_text_on_image(drawtext text:NSString , inimage img : UIImage , atpoint point : CGPoint) -> UIImage { return UIImage() }

write_text_on_image(drawtext: "NSString", inimage: UIImage(), atpoint: CGPoint(x: 0, y: 0))

Doesn't do anything, but compiles.

Argument labels '(format:, _:)' do not match any available overloads

Even though String is part of the standard Swift library, it appears that the format initializers are not.

Adding import Foundation fixes the issue:

import Foundation

var acctNumber = 27306
var accountType = "Savings"
var balance = 7503.35

print (acctNumber)
print (accountType)
print ("Your balance is" + String (format:"%.3f",balance))

Argument labels '(URL:)' do not match any available overloads

I'd suggest:

func visit(url: URL) {
    let viewController = VisitableViewController(url: url)
    navigationController.pushViewController(viewController, animated: true)
    session.visit(viewController)
}

That's using url: instead of URL: for the VisitableViewController initializer. I'd also suggest following that same convention with visit, and also replacing the NSURL with URL.

Argument labels '(rawValue:)' do not match any available overloads (xcode error)

You are initialising the UIWindow.Level with the wrong type. You are using a a literal value of 0.0 which will be inferred to be a Double when the method signature is: init(rawValue: CGFloat). You need to either use a CGFloat variable or cast the literal to a CGFloat

self.tmpWindow?.windowLevel = UIWindow.Level(rawValue: CGFloat(0.0))

In Swift 3, how to fix an error about argument labels do not match any available overloads for String type?

This method has been updated to (in the context of your example):

dataString = try String(contentsOf: fileDestinationUrl) 

In Swift 3, all function params now have labels unless specifically defined otherwise. This in practice often means the last part of a method name moves to the first params label.

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