I have protocols:

public protocol DCUUID {
    init(string: String)
    var uuidString: String { get }
}

public protocol DCPipe {
    var uuid: DCUUID { get }
}

Then I try to use it:

extension CBUUID: DCUUID {}

extension CBAttribute: DCPipe {}

The compiler says that CBAttribute does not conform DCPipe.

CBAttribute has property

var uuid: CBUUID { get }

CBUUID is DCUUID. So CBAttribute has property uuid that return DCUUID.

What is wrong?