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swiftswift-package-manager

Decl has a package access level but no -package-name was passed

I'm trying to implement newly added access specifier package

public class PackageDemoLibrary {
    public init() {}
    
    public var publicVariable = ""
    package var packageVariable = ""
}

but it's saying Decl has a package access level but no -package-name was passed.

As per documentation: A new flag -package-name is passed down to a commandline invocation, as follows. Read more here

swiftc -module-name Engine -package-name gamePkg ...
swiftc -module-name Game -package-name gamePkg ...
swiftc -module-name App -package-name appPkg ...

I'm not sure how can I add -package name in to my SPM Package.

Anyone know how can I get rid of this error

Solution

  • Go to your Package.swift file and check the version of your swift-tools-version. It should be on the first line.

    Since the package modifier was introduced in Swift 5.9, check if you're using swift-tools-version in a version greater than 5.9.