Swift & Xcode: The right way to Construct and Run a GitHub repository of iOS Utility?

I am on Operating this GitHub repository of an iOS Utility: https://github.com/dks333/Tiktok-Clone I opened the .xcodeproj file on XCode from the KDTiktok-Clone folder, however I am getting many Buildtime Errors.

The errors:

1. No such module ‘RxSwift,’
2. Command PhaseScriptExecution failed with a nonzero exit code,
3. a pair like this with the final folder being barely totally different: /Customers/sebastian/Library/Developer/Xcode/DerivedData/KD_Tiktok-Clone-bbpnhcpunfvvyybcckrfjwitjatw/Construct/Intermediates.noindex/KD Tiktok-Clone.construct/Debug-iphonesimulator/KD Tiktok-Clone.construct/Objects-normal/arm64/KD_Tiktok_Clone.abi.json /Customers/sebastian/Library/Developer/Xcode/DerivedData/KD_Tiktok-Clone-bbpnhcpunfvvyybcckrfjwitjatw/Construct/Intermediates.noindex/KD Tiktok-Clone.construct/Debug-iphonesimulator/KD Tiktok-Clone.construct/Objects-normal/arm64/KD_Tiktok_Clone.abi.json: No such file or listing

Might it’s some incomparability with my XCode and Swift variations? Im new to coding, please assist!!