Xcode is a complete developer toolset for creating apps for Mac, iPhone, iPad, Apple Watch, and Apple TV. Xcode brings user interface design, coding, testing, debugging, and submitting to the App Store into a unified workflow.
Downloading and updating Xcode
The current release of Xcode is available as a free download from the Mac App Store. The Mac App Store will notify you when an update is available or you can have macOS update automatically as it becomes available.
The latest beta version and previous versions of Xcode can be downloaded from the Downloads page. To download Xcode, simply sign in with your Apple ID.Apple Developer Program membership is not required.
Xcode 12.5.1 supports iOS 14.5, iPadOS 14.5, tvOS 14.5, watchOS 7.4, and macOS Big Sur 11.3. New in Xcode 12.5.1. Addresses a stability issue related to opening the Organizer window. Fixed an issue where XCTest code wasn't generated after pressing the Record button. Additional bug fixes and stability improvements. In this post I will show how to Install Cocoa Pods for Xcode projects. Cocoa Pods is a dependency manager for Swift and Objective-C Cocoa projects. Installation When you install XCode, you also get the gem (RubyGems, the Ruby package manager). This command allows you to install Cocoa Pods for Xcode, without any extra configuration. Execute Continue reading 'Install Cocoa Pods for XCode. Xcode for mac 10.6 free download. Internet & Network downloads - Xcode by Apple Inc. And many more programs are available for instant and free download.
Using Xcode
Xcode For 10.12
Get step-by-step guidance on how to use Xcode to build, test, and submit apps to the App Store.
Submitting apps to the App Store using Xcode
Xcode provides an integrated workflow for Apple Developer Program members to prepare and submit apps to the App Store. Use the latest version of Xcode available on the Mac App Store to submit your apps or, when available, the latest Release Candidate from the Downloads page.
Don't submit apps built using beta software, as beta versions of Xcode, Operating Systems, and SDKs are for development and testing only.
Learning about changes to Xcode
To learn about the latest features and capabilities in Xcode, see What’s New in Xcode. For update details in the latest released versions, including each beta release, see the Xcode Release Notes.
Minimum requirements and supported SDKs
| Xcode Version | Minimum OS Required | SDK | Architecture | Deployment Targets | Simulator | Swift |
|---|---|---|---|---|---|---|
| Xcode 13 | macOS Big Sur 11.3 | iOS 15 macOS 11.3 tvOS 15 watchOS 8 DriverKit 20.4 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-15 iPadOS 13-15 macOS 10.9-11.3 tvOS 9-15 watchOS 2-8 DriverKit 19-20.4 | iOS 10.3.1-15 tvOS 10.2-15 watchOS 3.2-8 | Swift 4 Swift 4.2 Swift 5.5 |
| Xcode 13 beta | macOS Big Sur 11.3 | iOS 15 macOS 12 tvOS 15 watchOS 8 DriverKit 21 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-15 iPadOS 13-15 macOS 10.9-12 tvOS 9-15 watchOS 2-8 DriverKit 19-21 | iOS 10.3.1-15 tvOS 10.2-15 watchOS 3.2-8 | Swift 4 Swift 4.2 Swift 5.5 |
| Xcode 12.5.1 | macOS Big Sur 11 | iOS 14.5 macOS 11.3 tvOS 14.5 watchOS 7.4 DriverKit 20.4 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-14.7 iPadOS 13-14.7 macOS 10.9-11.5 tvOS 9-14.7 watchOS 2-7.6 DriverKit 19-20.4 | iOS 10.3.1-14.5 tvOS 10.2-14.5 watchOS 3.2-7.4 | Swift 4 Swift 4.2 Swift 5.4 |
| Xcode 12.5 | macOS Big Sur 11 | iOS 14.5 macOS 11.3 tvOS 14.5 watchOS 7.4 DriverKit 20.4 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-14.6 iPadOS 13-14.6 macOS 10.9-11.4 tvOS 9-14.6 watchOS 2-7.5 DriverKit 19-20.4 | iOS 10.3.1-14.5 tvOS 10.2-14.5 watchOS 3.2-7.4 | Swift 4 Swift 4.2 Swift 5.4 |
| Xcode 12.4 | macOS Catalina 10.15.4 (Intel-based Mac) macOS Big Sur 11 (Apple silicon Mac) | iOS 14.4 macOS 11.1 tvOS 14.3 watchOS 7.2 DriverKit 20.2 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-14.4 iPadOS 13-14.4 macOS 10.9-11.1 tvOS 9-14.3 watchOS 2-7.2 DriverKit 19-20.2 | iOS 10.3.1-14.4 tvOS 10.2-14.3 watchOS 3.2-7.2 | Swift 4 Swift 4.2 Swift 5.3 |
| Xcode 12.3 | macOS Catalina 10.15.4 (Intel-based Mac) macOS Big Sur 11 (Apple silicon Mac) | iOS 14.3 macOS 11.1 tvOS 14.3 watchOS 7.2 DriverKit 20.2 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-14.3 iPadOS 13-14.3 macOS 10.9-11.1 tvOS 9-14.3 watchOS 2-7.2 DriverKit 19-20.2 | iOS 10.3.1-14.3 tvOS 10.2-14.3 watchOS 3.2-7.2 | Swift 4 Swift 4.2 Swift 5.3 |
| Xcode 12.2 | macOS Catalina 10.15.4 (Intel-based Mac) macOS Big Sur 11 (Apple silicon Mac) | iOS 14.2 macOS 11 tvOS 14.2 watchOS 7.1 DriverKit 20 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-14.2 iPadOS 13-14.2 macOS 10.9-11 tvOS 9-14.2 watchOS 2-7.1 DriverKit 19-20 | iOS 10.3.1-14.2 tvOS 10.2-14.2 watchOS 3.2-7.1 | Swift 4 Swift 4.2 Swift 5.3 |
| Xcode 12.1 | macOS Catalina 10.15.4 (Intel-based Mac) macOS Big Sur 11 (Apple silicon Mac) | iOS 14.1 macOS 10.15.6 tvOS 14 watchOS 7 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-14.1 iPadOS 13-14.1 macOS 10.9-11 tvOS 9-14 watchOS 2-7 DriverKit 19 | iOS 10.3.1-14.1 tvOS 10.2-14 watchOS 2-7 | Swift 4 Swift 4.2 Swift 5.3 |
| Xcode 12 | macOS Catalina 10.15.4 (Intel-based Mac) | iOS 14 macOS 10.15.6 tvOS 14 watchOS 7 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 9-14 iPadOS 13-14 macOS 10.6-10.15.6 tvOS 9-14 watchOS 2-7 DriverKit 19 | iOS 10.3.1-14 tvOS 10.2-14 watchOS 3.2-7 | Swift 4 Swift 4.2 Swift 5.3 |
| Xcode 11.7 | macOS Catalina 10.15.2 | iOS 13.7 macOS 10.15.6 tvOS 13.4 watchOS 6.2 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13.7 iPadOS 13-13.7 macOS 10.6-10.15.6 tvOS 9-13.4 watchOS 2-6.2 DriverKit 19 | iOS 10.3.1-13.7 tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.6 | macOS Catalina 10.15.2 | iOS 13.6 macOS 10.15.6 tvOS 13.4 watchOS 6.2 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13.6 iPadOS 13-13.6 macOS 10.6-10.5.6 tvOS 9-13.4 watchOS 2-6.2 DriverKit 19 | iOS 10.3.1-13.6 tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.5 | macOS Catalina 10.15.2 | iOS 13.5 macOS 10.15.4 tvOS 13.4 watchOS 6.2 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13.5 iPadOS 13-13.5 macOS 10.6-10.15.4 tvOS 9-13.4 watchOS 2-6.2 DriverKit 19 | iOS 10.3.1-13.5 tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.4.x | macOS Catalina 10.15.2 | iOS 13.4 macOS 10.15.4 tvOS 13.4 watchOS 6.2 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13.4.x iPadOS 13-13.4.x macOS 10.6-10.15.4 tvOS 9-13.4 watchOS 2-6.2 DriverKit 19 | iOS 10.3.1-13.4.x tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.3.x | macOS Mojave 10.14.4 | iOS 13.3 macOS 10.15.2 tvOS 13.3 watchOS 6.1.1 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13.3 iPadOS 13-13.3 macOS 10.6-10.15.2 tvOS 9-13.3 watchOS 2-6.1.1 DriverKit 19 | iOS 10.3.1-13.3 tvOS 10.2-13.3 watchOS 3.2-6.1.1 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 11.2.x | macOS Mojave 10.14.4 | iOS 13.2 macOS 10.15.1 tvOS 13.2 watchOS 6.1 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13.2.x iPadOS 13-13.2.x macOS 10.6-10.15.1 tvOS 9-13.2 watchOS 2-6.1 DriverKit 19 | iOS 10.3.1-13.2.x tvOS 10.2-13.2 watchOS 3.2-6.1 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 11.1 | macOS Mojave 10.14.4 | iOS 13.1 macOS 10.15 tvOS 13 watchOS 6 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13.1 iPadOS 13-13.1 macOS 10.6-10.15 tvOS 9-13 watchOS 2-6 DriverKit 19 | iOS 10.3.1-13.1 tvOS 10.2-13 watchOS 3.2-6 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 11 | macOS Mojave 10.14.4 | iOS 13 macOS 10.15 tvOS 13 watchOS 6 DriverKit 19 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-13 iPadOS 13-13 macOS 10.6-10.15 tvOS 9-13 watchOS 2-6 DriverKit 19 | iOS 10.3.1-13 tvOS 10.2-13 watchOS 3.2-6 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 10.3 | macOS Mojave 10.14.3 | iOS 12.4 macOS 10.14.6 tvOS 12.4 watchOS 5.3 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-12.4 macOS 10.6-10.14.6 tvOS 9-12.4 watchOS 2-5.3 | iOS 10.3.1-12.4 tvOS 10.2-12.4 watchOS 3.2-5.3 | Swift 4 Swift 4.2 Swift 5 |
| Xcode 10.2x | macOS Mojave 10.14.3 | iOS 12.2 macOS 10.14.4 tvOS 12.2 watchOS 5.2 | x86_64 armv7 armv7s armv7k arm64 arm64e arm64_32 | iOS 8-12.2 macOS 10.6-10.14.4 tvOS 9-12.2 watchOS 2-5.2 | iOS 8.1-12.2 tvOS 9-12.2 watchOS 2-5.2 | Swift 4 Swift 4.2 Swift 5 |
Legend
Minimum OS Required: The version of macOS required to install this version of Xcode.
SDK: The version of SDKs included in this version of Xcode.
Architecture: The architectures supported for development by this version of Xcode.
OS: The iOS, iPadOS, macOS, tvOS, and watchOS versions supported by this version of Xcode for developing, installing, and debugging applications.
Simulator: Versions of iOS, tvOS, and watchOS simulators supported for development by this version of Xcode.
Swift: Version of Swift supported for development by this version of Xcode.
Xcode For 10.12.6
Providing feedback and reporting bugs
Your feedback goes a long way toward making Xcode even better. With Feedback Assistant, you can report issues or request enhancements to APIs and tools. Provide detailed information about issues, including your system and developer tool versions, and any relevant crash logs or console messages. To ask questions and find answers from Apple engineers and other developers, visit the Apple Developer Forums.
Invalid private key and certificate pairing
If you receive an error message saying, 'Xcode could not find a valid private-key/certificate pair for this profile in your keychain,” the Keychain Access application on your Mac is missing either the public or private key for the certificate you’re using to sign your app.
This often happens when you're trying to sign and build your app from a different Mac than the one you originally used to request your code signing certificate. It can also happen if your certificate has expired or has been revoked. Ensure that your app’s provisioning profile contains a valid code signing certificate, and that the Keychain Access application on your Mac contains that certificate, the private key originally used to generate that certificate, and the WWDR Intermediate Certificate.
For instructions on how to resolve this and other code signing errors, review the Code Signing Support page.
Apple security updates
For information on the security content of Xcode updates, visit the Apple security updates page.
I cant download Xcode on my macBook Pro. Xcode cant be installed on Macintosh SSD because OS X version 10.12.6 or later is required. Global Nav Open Menu Global Nav Close Menu; Apple; Shopping Bag +. As expected, Apple has finally released its next most advanced Mac operating system i.e. MacOS Sierra 10.12 and Xcode 8 apps development tool at Worldwide Developer Conference 2016.The latest macOS Sierra 10.12.6 Beta (Build 16G23a) and Xcode Beta updates are now available for macOS developers and non-developers (general public users) for free to experience new features and functionalities.
- More than you ever wanted to know™ This is not an official Apple website. Please consider donating to help maintain it. Looking for an API?
- Xcode is a complete developer toolset for creating apps for Mac, iPhone, iPad, Apple Watch, and Apple TV. Xcode brings user interface design, coding, testing, debugging, and submitting to the App Store all into a unified workflow. Downloading and updating Xcode. The current release of Xcode is available as a free download from the Mac.
You may have to sign up for a free Apple Developer Account in order to download Xcode 10 from the developer link that BDAqua provided — unless Apple has relaxed its access privileges for these tools.
Alternatively, If all you want is a a compilation environment for Objective-C, C++, and Swift v4.n, the Command Line Tools (macOS 10.13) for Xcode will provide that at 7GB less storage. You would then need a competent programmer's editor, and you can still build hand-coded cocoa applications. This is my preference.
Xcode is a complete developer toolset for creating apps for Mac, iPhone, iPad, Apple Watch, and Apple TV. Xcode brings user interface design, coding, testing, debugging, and submitting to the App Store all into a unified workflow.
Downloading and updating Xcode
The current release of Xcode is available as a free download from the Mac App Store. The Mac App Store will notify you when an update is available or you can have macOS update automatically as it becomes available.
The latest beta version and previous versions of Xcode can be downloaded from the Downloads page. To download Xcode, simply sign in with your Apple ID.Apple Developer Program membership is not required.
Using Xcode
Get step-by-step guidance on how to use Xcode to build, test, and submit apps to the App Store.
Xcode 12 For Mac
Submitting apps to the App Store using Xcode
If you’re an Apple Developer Program member, Xcode provides an integrated workflow to prepare and submit apps to App Store. You should use the latest version of Xcode available on the Mac App Store to submit your apps, or when available, the latest GM seed release from the Downloads page.
Do not submit apps built using beta software, as beta versions of Xcode, Operating Systems, and SDKs are for development and testing only.
Learning about changes to Xcode
To learn about the latest features and capabilities in Xcode, see What’s New in Xcode. For update details in the latest released versions, including each beta release, see the Xcode Release Notes.
Minimum requirements and supported SDKs
| Xcode Version | Minimum OS Required | SDK | Architecture | OS | Simulator | Swift |
|---|---|---|---|---|---|---|
| Xcode 12.2 beta | macOS Catalina 10.15.4 (Intel-based Mac) macOS Big Sur 11.0 (Apple silicon Mac) | iOS 14.2 macOS 11 tvOS 14.2 watchOS 7.1 DriverKit 20.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 9.0-14.2 iPadOS 13.0-14.2 macOS 10.9-11.0 tvOS 9.0-14.0 watchOS 2.0-7.0 | iOS 10.3.1-14.2 tvOS 10.2-14.2 watchOS 3.2-7.1 | Swift 4 Swift 4.2 Swift 5.3 |
| Xcode 12 | macOS Catalina 10.15.4 (Intel-based Mac) | iOS 14 macOS 10.15.6 tvOS 14 watchOS 7.0 DriverKit 20.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 9.0-14.0 iPadOS 13.0-14.0 macOS 10.6-10.15.6 tvOS 9.0-14.0 watchOS 2.0-7.0 | iOS 10.3.1-14.0 tvOS 10.2-14.0 watchOS 3.2-7.0 | Swift 4 Swift 4.2 Swift 5.3 |
| Xcode 11.7 | macOS Catalina 10.15.2 | iOS 13.7 macOS 10.15.6 tvOS 13.4 watchOS 6.2 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.7 iPadOS 13.0-13.7 macOS 10.6-10.15.6 tvOS 9.0-13.4 watchOS 2.0-6.2 | iOS 10.3.1-13.7 tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.6 | macOS Catalina 10.15.2 | iOS 13.6 macOS 10.15.6 tvOS 13.4 watchOS 6.2 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.6 iPadOS 13.0-13.6 macOS 10.6-10.5.6 tvOS 9.0-13.4 watchOS 2.0-6.2 | iOS 10.3.1-13.6 tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.5 | macOS Catalina 10.15.2 | iOS 13.5 macOS 10.15.4 tvOS 13.4 watchOS 6.2 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.5 iPadOS 13.0-13.5 macOS 10.6-10.15.4 tvOS 9.0-13.4 watchOS 2.0-6.2 | iOS 10.3.1-13.5 tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.4.x | macOS Catalina 10.15.2 | iOS 13.4 macOS 10.15.4 tvOS 13.4 watchOS 6.2 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.4.x iPadOS 13.0-13.4.x macOS 10.6-10.15.4 tvOS 9.0-13.4 watchOS 2.0-6.2 | iOS 10.3.1-13.4.x tvOS 10.2-13.4 watchOS 3.2-6.2 | Swift 4 Swift 4.2 Swift 5.2 |
| Xcode 11.3.x | macOS Mojave 10.14.4 | iOS 13.3 macOS 10.15.2 tvOS 13.3 watchOS 6.1.1 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.3 iPadOS 13.0-13.3 macOS 10.6-10.15.2 tvOS 9.0-13.3 watchOS 2.0-6.1.1 | iOS 10.3.1-13.3 tvOS 10.2-13.3 watchOS 3.2-6.1.1 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 11.2.x | macOS Mojave 10.14.4 | iOS 13.2 macOS 10.15.1 tvOS 13.2 watchOS 6.1 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.2.x iPadOS 13.0-13.2.x macOS 10.6-10.15.1 tvOS 9.0-13.2 watchOS 2.0-6.1 | iOS 10.3.1-13.2.x tvOS 10.2-13.2 watchOS 3.2-6.1 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 11.1 | macOS Mojave 10.14.4 | iOS 13.1 macOS 10.15 tvOS 13 watchOS 6.0 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.1 iPadOS 13.0-13.1 macOS 10.6-10.15 tvOS 9.0-13.0 watchOS 2.0-6.0 | iOS 10.3.1-13.1 tvOS 10.2-13.0 watchOS 3.2-6.0 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 11 | macOS Mojave 10.14.4 | iOS 13 macOS 10.15 tvOS 13 watchOS 6.0 DriverKit 19.0 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-13.0 iPadOS 13.0-13.0 macOS 10.6-10.15 tvOS 9.0-13.0 watchOS 2.0-6.0 | iOS 10.3.1-13.0 tvOS 10.2-13.0 watchOS 3.2-6.0 | Swift 4 Swift 4.2 Swift 5.1 |
| Xcode 10.3 | macOS Mojave 10.14.3 | iOS 12.4 macOS 10.14.6 tvOS 12.4 watchOS 5.3 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-12.4 macOS 10.6-10.14.6 tvOS 9.0-12.4 watchOS 2.0-5.3 | iOS 10.3.1-12.4 tvOS 10.2-12.4 watchOS 3.2-5.3 | Swift 4 Swift 4.2 Swift 5 |
| Xcode 10.2x | macOS Mojave 10.14.3 | iOS 12.2 macOS 10.14.4 tvOS 12.2 watchOS 5.2 | x86_64 armv7 armv7s arm64 arm64e | iOS 8.0-12.2 macOS 10.6-10.14.4 tvOS 9.0-12.2 watchOS 2.0-5.2 | iOS 8.1-12.2 tvOS 9.0-12.2 watchOS 2.0-5.2 | Swift 4 Swift 4.2 Swift 5 |
Legend
Xcode 12 Download
Download Xcode 10.1
Minimum OS Required: The version of macOS required to install this version of Xcode.
SDK: The version of SDKs included in this version of Xcode.
Architecture: The architectures supported for development by this version of Xcode.
OS: The iOS, iPadOS, macOS, tvOS, and watchOS versions supported by this version of Xcode for developing, installing, and debugging applications.
Xcode 11 3 Download For Mac
Simulator: Versions of iOS, tvOS, and watchOS simulators supported for development by this version of Xcode.
Swift: Version of Swift supported for development by this version of Xcode.
Providing feedback and reporting bugs
Your feedback goes a long way towards making Xcode even better. With Feedback Assistant, you can report issues or request enhancements to APIs and tools. Include detailed information about issues, including the system and developer tools version information, and any relevant crash logs or console messages. To ask questions and find answers by Apple engineers and other developers, visit the Apple Developer Forums.
Invalid private key and certificate pairing
If you received an error message saying, 'Xcode could not find a valid private-key/certificate pair for this profile in your keychain.' This error message indicates that the Keychain Access application on your Mac is missing either the public or private key for the certificate you are using to sign your app.
This often happens when you are trying to sign and build your app from a different Mac than the one you originally used to request your code signing certificate. It can also happen if your certificate has expired or has been revoked. Ensure that your app’s provisioning profile contains a valid code signing certificate, and that the Keychain Access application on your Mac contains that certificate, the private key originally used to generate that certificate, and the WWDR Intermediate Certificate.
For instructions on how to resolve this and other code signing errors, review the Code Signing Support page.
Xcode For 10.12.6
Apple security updates
Xcode 12.5 Release Notes
For information on the security content of Xcode updates, visit the Apple security updates page. /cinema-4d-r14-studio-mac-download/.