I want to add a treeview menu in the left side of my application like xcode treeview menu in the leftside. I didn't find any treeview ment element in the object container of xcode. Can anyone suggest me how to do it.I am using Xcode 9.3 and swift 4.

Hi there. I am developing a mac os application where i have to convert the data from server API to a zip file. The API is returning a zip file itself in encoded format of type Data, but i want to convert that data to a zip file and want to store in the disk.CODE:______ func DownloadExamZip(){ let request = NSMutableURLRequest(url: NSURL(string: "http://localhost:5000/api/DownloadExamZip/EX0000018/ST000000195/874059")! as URL) request.httpMethod = "GET" let AuthorizationToken = "Hidden" request.setValue("application/x-www-form-urlencoded; charset=utf-8", forHTTPHeaderField: "Content-Type") request.setValue(AuthorizationToken, forHTTPHeaderField: "Authorization") let task = URLSession.shared.dataTask(with: request as URLRequest) { data, response, error in do { guard data != nil else { print("data is nil") return } //Here i want to convert the type data to a zip file } catch { print("Error -> \(error)") } } task.resume() } Can anyone help me to convert that data into a zip file please. I also have to store that file in the disk.

I am facing a critical issue in y Xcode project after integrating cocoapod. I am developing a mac os application and for .zip file related works i integrated cocoapod to my project but now its showing error and unable to build project.error:PhaseScriptExecution [CP]\ Embed\ Pods\ Frameworks /Users/bishnudas/Library/Developer/Xcode/DerivedData/Unox_Student_Console-aufhqqmxtgklivfwbbyoooeifvka/Build/Intermediates.noindex/Unox\ Student\ Console.build/Debug/Unox\ Student\ Console.build/Script-7B03BB8C8C7A0CD6DE9A8461.sh (in target: Unox Student Console) cd /Users/bishnudas/Library/Autosave\ Information/Unox\ Student\ Console /bin/sh -c /Users/bishnudas/Library/Developer/Xcode/DerivedData/Unox_Student_Console-aufhqqmxtgklivfwbbyoooeifvka/Build/Intermediates.noindex/Unox\\\ Student\\\ Console.build/Debug/Unox\\\ Student\\\ Console.build/Script-7B03BB8C8C7A0CD6DE9A8461.sh mkdir -p /Users/bishnudas/Library/Developer/Xcode/DerivedData/Unox_Student_Console-aufhqqmxtgklivfwbbyoooeifvka/Build/Products/Debug/Unox Student Console.app/Contents/Frameworks rsync --delete -av --filter P .*.?????? --filter "- CVS/" --filter "- .svn/" --filter "- .git/" --filter "- .hg/" --filter "- Headers" --filter "- PrivateHeaders" --filter "- Modules" "/Users/bishnudas/Library/Developer/Xcode/DerivedData/Unox_Student_Console-aufhqqmxtgklivfwbbyoooeifvka/Build/Products/Debug/ZIPFoundation/ZIPFoundation.framework" "/Users/bishnudas/Library/Developer/Xcode/DerivedData/Unox_Student_Console-aufhqqmxtgklivfwbbyoooeifvka/Build/Products/Debug/Unox Student Console.app/Contents/Frameworks" building file list ... done sent 371 bytes received 20 bytes 782.00 bytes/sec total size is 509916 speedup is 1304.13 /Users/bishnudas/Library/Autosave Information/Unox Student Console/Pods/Target Support Files/Pods-Unox Student Console/Pods-Unox Student Console-frameworks.sh: line 104: EXPANDED_CODE_SIGN_IDENTITY: unbound variable Command PhaseScriptExecution failed with a nonzero exit code