MacOS NSWorkspace.shared.open "The application can’t be opened. -50"

Question

Following some other Stack Overflow code examples of NSWorkspace.shared.open(), I came up with this:

  @IBAction func mailFileVacuum(_ sender: NSButton) {
    let receiver = sender.alternateTitle
    let sendAddress = String(format: "mailto:%@@filevacuum.com?subject=FileVacuum %@", receiver, receiver).addingPercentEncoding(withAllowedCharacters: .urlHostAllowed)!

    NSLog("receiver %@", receiver)

    let mailUrl = URL(string: sendAddress)

    NSLog("mailUrl %@", mailUrl!.absoluteString)

    if NSWorkspace.shared.open(mailUrl!) {
        print("Default browser was successfully opened to send email. ")

    }
  }

☝️ that gets us this

I tried changing the default browser, that's not the issue.

NSLog(mailUrl) logs this mailto%3AFeedback%40filevacuum.com%3Fsubject=FileVacuum%20Feedback

Look good maybe ...

¿Que Paso?

@LeoDabus, that was just an example. They're all using `UIApplication.shared().openURL(url)` in that example link. I'm using `NSWorkspace.shared.open(url)` from https://developer.apple.com/documentation/appkit/nsworkspace — Mikeumus, Oct 03 '19 at 03:08

score 4 · Accepted Answer · answered Oct 03 '19 at 03:11

You should not be percent encoding the entire URL; but rather, its individual components. See the Apple URL Scheme Reference.

The correctly formatted URL should look like (i.e. NSLog(mailUrl) should output):

mailto:Feedback@filevacuum.com?subject=FileVacuum%20Feedback

MacOS NSWorkspace.shared.open "The application can’t be opened. -50"

1 Answers1