如何从Mac的Xcode项目中打开应用程序（Cocoa App）

Question

Today I have created an Cocoa Application for the very first time . I want to create a simple App which will open an APP from my Mac , if the file not found it will show a Link in a Label to download the App. Here is my code below which I am struggling with .

  if let fileCheck = NSURL.fileURL(withPath: "/Applications/Mango.app") {
        if NSWorkspace.shared().open(fileCheck as URL) {
            print("url successfully opened")
        }
    } else {
      self.downloadLink.insertText("Invalid Path")
    }

NSURL.fileURL(withPath: "/Applications/Mango.app") giving me Conditional Binding Must be Optional , I don't know how to fix that. And I am struggling with how to show a link on my Label either. Any kind hearted Dev please help.

Answer 1

got the solution by someone , I don't know why he deleted that !

   if FileManager().fileExists(atPath: "/Applications/Mango.app") {
       NSWorkspace.shared().open(NSURL(fileURLWithPath:   "/Applications/Mango.app") as URL)
    } else {
        downloadLink.isHidden = false
    }