No exact matches in call to instance method error message in Swift

I never get this before, What is the meaning of this error message in Swift:

> No exact matches in call to instance method 'dataTask(with:completionHandler:)'

Here is my code block:

var request: NSMutableURLRequest? = nil
let task = URLSession.shared.dataTask(
with: request,
completionHandler: { data, response, error in
DispatchQueue.main.async(execute: {
/// ...
})
})
task.resume()

### Bug Report

Reported via feedbackassistant.apple.com: **FB7717686**

**Note: The Error still exists in the Xcode Version 14.3 on 2023, May 1**

# Why Xcode Yelling?
Maybe the message text seems a little bit **self-explanatory** but because [Xcode][1] does not precisely point to the parameter itself, a little bit hard to figure out the first time.

Xcode is yelling because the method wants to see **exact parameter types** on the method call, that is easy.

## Solution for the Question:

var request: URLRequest? = nil

let task = URLSession.shared.dataTask(
with: request!,
completionHandler: { data, response, error in
DispatchQueue.main.async(execute: {

})
})
task.resume()

Just used the **[URLRequest][2]** instead of the [NSMutableURLRequest][3].


## A SwiftUI Case

Let's assume this is your UI:

ZStack() {
Image(systemName: "photo")
.resizable()
.aspectRatio(contentMode: .fit)
.background(Color.green)
.foregroundColor(Color.white)
.cornerRadius(12)
Text(getToday())
.font(.headline)
}
}

And this is the method that you're calling in the Text(...):

func getToday() -> Any?
{
let now = Date()
let calendar = Calendar.current
let components = calendar.dateComponents([.day], from: now)
return components.day

}

**Solution**

In the example above solution would be changing the **Any?** to a **String** type.

## A NSURL Case

if let url = NSURL(String: "http://example-url.com/picture.png") {
// ...
}

**Solution**

if let url = URL(String: "http://example-url.com/picture.png") {
// ...
}

# ℹ️ No exact matches in call to instance method '* * *'

This is a **general error message** for using the wrong type in the method calls. That's why I added here to help others.

I hope this answer will help some of you guys.

Best.


[1]:

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[2]:

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[3]:

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Also check if the `url` is the `actual url` and not a `String`

URLSession.shared.dataTask(with: url) { data, response, error

Xcode gives this error when you add `SKPaymentQueue` methods (such as `SKPaymentQueue.default().add()` to your code before making the current class conform to the `SKPaymentTransactionObserver` protocol.

Just make your class conform to the `SKPaymentTransactionObserver` protocol to solve this error if this is the case.

If you're getting this error in a **`Text`** element, try **wrapping** your value in **`String(describing: value)`**. Fixed my case.

```lang-swift
Text("Leading text \(String(describing: value))")
```
<sub>[Source](

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;

I was using `dataTask` with URL, but I was unwrapping the URL as `NSURL`, and that is why it was giving me an error.

I was doing this:

if let url = NSURL(String: "http://myyrl.com/filename.jpg") {
//my code
}

What fixed the error was replacing `NSURL` with `URL`:

if let url = URL(String: "http://myyrl.com/filename.jpg") {
//my code
}