MayaLiveLinkPlugin build Fail in UE4.20 Source

We try to create our custom Live-Link-Plugin to stream animate data to UE, in our project (UE version is 4.20).
According the Live-Link-Plugin/Live Link Plugin Development guide, we use the live link message bus framework. And, decide to base the MayaLiveLinkPlugin pj to make our plugins(DLL) project. But the project build from source is fail.

Can you supply the Live-Link-Protocol file, we can create our plugin without UE-Live-Link-Message-Bus-Framework.
Or, for the UE4.20 MayaLiveLinkPlugins project source file.