Argument passed to call that takes no arguments

I am trying to implement a really basic NavigationView in SwiftUI. When I try the sample code that I have seen on other websites it generates an error message in Xcode. I am not sure why or how to fix this.

I have tried to clean the project, quit Xcode-Beta and restart it but that did not work.

I thought the code above should work but the error I get says:

«Argument passed to call that takes no arguments.»

Any ideas or suggestions?

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VStack can only take 10 argument. If more, there will be error, so you should make it nested.

I had this same error message too and figured out what I did wrong and then kind of felt like an idiot. Ha ha.

So I’m wondering if you had a file in your project that did this too.

Testing Xcode 11.2.1 and it’s still buggy. I noticed when I keep adding primitive views to my ContentView, I start getting errors like «Argument passed to call that takes no arguments», «Type of expression is ambiguous without more context» etc. on primitive views which worked before. When I replaced, for example,

my code started to compile and run again.

check-in your app is there any Swifui class with the name NavigationView. also when you jump to the definition from NavigationView it should refer to:

I found this problem when I accidentally try to redefine Text struct. Check if you naming your custom class the same as those in SwiftUI.

@Matteo Pacini helped me find the answer. When I started a new Xcode Project just to test the code above everything worked. I had a lot of files and was testing a lot of different code while experimenting with SwiftUI in my other project and for some reason XCode was always generating this error.

When I tried everything in a new project it worked. Something to be aware of while testing. Hope this helps others avoid similar problems.

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How to fix an «Argument passed to call that takes no arguments» error?

I am attempting to make a TicTacToe game. I’m trying to use this checkForWinner function but keep getting errors. Any help is greatly appreciated.

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You are calling the function with a string parameter, but the function does not take the string parameter. Either the call should be

without passing any arguments or the function should be modified to

The compiler’s message is misleading, and other languages would give a better message instead, something like:

How to reproduce:

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«Argument passed to call that takes no arguments» when creating an object

I have an error in using a Swift class. When I am trying to create a new object like so

I get the error «Argument passed to call that takes no arguments» and I don’t know why. I’ve read some docs and this is the exact same way they do it. This is how my class looks:

I am thinking I might need to add an initializer but I don’t see why that is necessary in my case.

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You can get the synthesized init using an Struct, like so

For a class you either provide an initializer:

Note: Avoid using underscores in variable names, use camelCase such as codBare

From the Structures and Classes chapter of the Swift book:

Memberwise Initializers for Structure Types All structures have an automatically generated memberwise initializer, which you can use to initialize the member properties of new structure instances. Initial values for the properties of the new instance can be passed to the memberwise initializer by name:

Unlike structures, class instances don’t receive a default memberwise initializer. Initializers are described in more detail in Initialization.

Your class has no initializer other than the default one with no parameters.

Either add the needed initializer with two parameters or change your class to a struct.

Argument passed to call that takes no arguments when using init() method

I am trying to assign default values to the pickers. Initially I am finding the index that matches a string («Tesco») but when this works I will replace the string with the product.product_name that is passed into the ProductDetail struct. If I remove the init() method (and uncomment the relevant variables) then the error disappears and it works as normal. I have tried moving the var product = Product_ declaration into the init() but that causes different errors. I feel I am just trying every combination without knowing why they aren’t working. I am sure at some point it’ll work but I won’t know why.

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Your initialiser is wrong, it should take a Product input argument.

There is an inconsistency. The init method takes no arguments (that’s what the error says) but product is not being initialized.

As the initial values of the @State variables are constants anyway and you cannot initialize @State properties this way I’d recommend to omit the init method and assign the values literally.

And please stop using those underscore characters and snake_case names. That’s pretty unswifty

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