grpc-swift: Protoc-generated swift files not compatible with SwiftGrpc (CocoaPods)

1. I have installed in my project SwiftGrpc via CocoaPods
2. Then I generated Swift proxy files via:

protoc <your proto files> \
    --swift_out=. \
    --swiftgrpc_out=.

1. Then I dragged generated swift files into project, but the project doesn’t compile (see screenshot) ScreenShot

2. When I checked handleMethod definition (from SwiftGrpc CocoaPods) I see different definition like this:

/// Handle the given method. Needs to be overridden by actual implementations.
  /// Returns whether the method was actually handled.
  open func handleMethod(_ method: String, handler: Handler, queue: DispatchQueue) throws -> Bool { fatalError("needs to be overridden") }

1. Also HandleMethodError enum is not defined inside SwiftGrpc (CocoaPods)

Any ideas?