iOS - Problems connecting from own app to Dropbox when Dropbox App is installed

Dear greg-db,

thanks for your support. Unfortunately, I can't manage it.

I'm using the DropboxApp version 258.2.2.

SwiftyDropbox SDK-version is 7.0.1

For the authorization I use the "authorizeFromControllerV2" as described:

func connectDropbox(withRequest request: Dropboxrequest) {

        let scopeRequest = ScopeRequest(scopeType: .user, scopes: ["files.content.write"], includeGrantedScopes: false)

            DropboxClientsManager.authorizeFromControllerV2(

                UIApplication.shared,

                controller: self,

                loadingStatusDelegate: nil,

                openURL: { (url: URL) -> Void in UIApplication.shared.open(url, options: [:], completionHandler: nil) },

                scopeRequest: scopeRequest

            )

    }

and the functions within AppDelegate and in SceneDelegate are as described in the manual:

func scene(_ scene: UIScene, openURLContexts URLContexts: Set<UIOpenURLContext>) {

         let oauthCompletion: DropboxOAuthCompletion = {

          if let authResult = $0 {

              switch authResult {

              case .success:

                    print("Success! User is logged into DropboxClientsManager.")

              case .cancel:

                  print("Authorization flow was manually canceled by user!")

              case .error(_, let description):

                  print("Error: \(String(describing: description))")

              }

          }

        }

        for context in URLContexts {

            // stop iterating after the first handle-able url

            if DropboxClientsManager.handleRedirectURL(context.url, completion: oauthCompletion) { break }

        }

    }

When trying to read or write a file to Dropbox I'm always referred to the Authorization Screen from the Dropbox and I'm asked if I want to give access permission for my app.

Furthermore I got the following messages:

021-11-05 17:16:15.392198+0000 Kochbuch[36069:5578791] [connection] nw_read_request_report [C4] Receive failed with error "Software caused connection abort"

2021-11-05 17:16:15.411732+0000 Kochbuch[36069:5578791] Task <F851E3DF-4C19-444C-AB1B-82ACB996ACD8>.<4> HTTP load failed, 36/0 bytes (error code: -1005 [1:53])

2021-11-05 17:16:15.412911+0000 Kochbuch[36069:5579146] Task <F851E3DF-4C19-444C-AB1B-82ACB996ACD8>.<4> finished with error [-1005] Error Domain=NSURLErrorDomain Code=-1005 "Die Netzwerkverbindung wurde unterbrochen." UserInfo={_kCFStreamErrorCodeKey=53, NSUnderlyingError=0x2806e0840 {Error Domain=kCFErrorDomainCFNetwork Code=-1005 "(null)" UserInfo={_kCFStreamErrorCodeKey=53, _kCFStreamErrorDomainKey=1}}, _NSURLErrorFailingURLSessionTaskErrorKey=LocalDataTask <F851E3DF-4C19-444C-AB1B-82ACB996ACD8>.<4>, _NSURLErrorRelatedURLSessionTaskErrorKey=(

    "LocalDataTask <F851E3DF-4C19-444C-AB1B-82ACB996ACD8>.<4>"

), NSLocalizedDescription=Die Netzwerkverbindung wurde unterbrochen., NSErrorFailingURLStringKey=https://api.dropbox.com/oauth2/token, NSErrorFailingURLKey=https://api.dropbox.com/oauth2/token, _kCFStreamErrorDomainKey=1}

Error: nil