An error occurred while creating TRESTCLIENT: “None registers the peer of the interface with GUID [{}]

 TFrwWebServiceREST = class(TInterfacedObject, IRESTWebServiceProxy)
private
 FClientRest: TRESTClient;
 FRequestRest: TRESTRequest;
 FResponseRest: TRESTResponse;
public
 constructor Create (AUrl : string); virtual;
end;

...

constructor TFrwWebServiceREST.Create(AUrl: string);
begin
 FClientRest := TRESTClient.Create (AUrl); //the error occurs here
 FClientRest.AcceptEncoding :='UTF-8';
 FResponseRest := TRESTResponse.Create (nil);
 FResponseRest .ContentEncoding :='UTF-8';
 FRequestRest := TRESTRequest.Create (nil);
 FRequestRest.AcceptEncoding :='UTF-8';
 FRequestRest.Response := FResponseRest; 
 FRequestRest.Client := FClientRest;
end;

I I have created my class to use REST. I have a problem with the TRESTClient component at runtime.

TFrwWebServiceREST = class(TInterfacedObject, IRESTWebServiceProxy)
 private
 FClientRest: TRESTClient;
 FRequestRest: TRESTRequest;
 FResponseRest: TRESTResponse;
public
 constructor Create (AUrl: string); virtual;
end; 

...

constructor TFrwWebServiceREST.Create(AUrl: string);
begin
 FClientRest := TRESTClient.Create (AUrl); // the error occurs here
 FClientRest.AcceptEncoding :='UTF-8';
 FResponseRest := TRESTResponse.Create (nil);
 FResponseRest.ContentEncoding :='UTF-8';
 FRequestRest := TRESTRequest.Create (nil);
 FRequestRest.AcceptEncoding :='UTF-8';
 FRequestRest.Response := FResponseRest;
 FRequestRest.Client := FClientRest;
end;

Errors don’t always happen… the process works perfectly, and then after a while, this error starts to happen.

< p>

First chance exception at $7656C54F. Exception class EIPAbstractError with message’No peer with the interface with guid {B8BD5BD8-C39D-4DF1-BB14-625FC86029DB} has been registered’.

p>

An exception is thrown when creating a RESTClient. What can it be?

It is necessary to include IPPeerClient in the “uses” clause in the client code and IPPeerServer in the “uses” clause in the server code Please refer to
http://blogs.embarcadero.com/pawelglowacki/2013/01/10/39958