I expect to open a text file with the default Texteditor when I click on Help > Button AppSignerGui License. Quote from my Question: "I want to open a text file where all the Licence stuff is written down"

In my Project I have a .txt file under textFiles/Licence.txt where the Licences are displayed. At licenceUrl.absoluteString I get the error "Thread 1: Fatal error: Unexpectedly found nil while unwrapping an Optional value"

Okay typical me hours for hours no answer to the problem and when I am asking, I find it right away... My solution: func returnDirString () -> String {     let dir = "/some/return/string"     return dir } func usingDirString (strUpper: String) {     print(strUpper) } struct ContentView: View {     @State var processString = ""     var body: some View {         Button(action: {             let someString = returnDirString()             $processString.wrappedValue = someString         }) {             Text("Read Apk")         }         .padding()         Button(action: {             usingDirString (strUpper: processString)         }) {             Text("Sign Apk")         }         .padding()     } } But is there a better one please discuss, I am curious!