Error in wireguard-Apple --> building and integrate for iOS and macos

See more:

macOS

Objective-C

Apple

iOS

Swift

I am trying to integrate WireGuard for iOS and macOS in Xcode, the build process is success, but the integration shows error,although I had followed the procedures said in Github(https://github.com/WireGuard/wireguard-apple/blob/master/README.md)...

I am facing this "Package resolution failed...Invalid manifest" issue while integrating WireGuardKit in Xcode project. Please help me to solve this, if anyone has done it, share your ideas/thoughts as soon as possible...

Any help will be appreciated!

What I have tried:

I had followed the steps shown in GitHub, after build process, when I press Command+B, it shows "Build Succeeded", but, when I try to start the integration process into Xcode, in the 1st point itself the error was observed.
I searched for possiblities, but there is no perfect solution found to solve my error.
Help required to solve this issue as soon as possible.
Thanks in advance!