How to execute terminal commands in swift?

Question

terminal emulator

Good day/evening to all
I want to write a program in swift for Linux for easy use of projects. There was a problem, when I specify a new project, it was created in the project folder,
in the terminal you can create a project with the command
swift package init --type executable
and generate an xcode project for further use in xcode, you can use this command
swift package generate-xcodeproj
I have a TerminalTools class that is responsible for executing, reading from the terminal
for example I try run these two commands using the method below and it gives me an error

func shell(launchPath: String, arguments: [String]) -> String {

        let process = Process()
        process.launchPath = launchPath
        process.arguments = arguments

        let pipe = Pipe()
        process.standardOutput = pipe
        process.launch()

        let output_from_command = String(data: pipe.fileHandleForReading.readDataToEndOfFile(), encoding: String.Encoding.utf8)!

        // remove the trailing new-line char
        if output_from_command.characters.count > 0 {
            let lastIndex = output_from_command.index(before: output_from_command.endIndex)
            return output_from_command[output_from_command.startIndex ..< lastIndex]
        }
        return output_from_command
    }

creating project
fatal error: POSIX command failed with error: 2: file Foundation/Process.swift, line 473
Illegal instruction (core dumped)

searched on the Internet tried to use other methods always gives such an error,
I can’t understand why this can be something with privileges ??