Routing: fix router select wrong outbound when failed to resolve domain to ip

features/routing/session/context.go

@@ -152,6 +152,11 @@ func (ctx *Context) GetSkipDNSResolve() bool {
 	return ctx.Content.SkipDNSResolve
 }
 
+// GetError implements routing.Context.
+func (ctx *Context) GetError() error {
+	return nil
+}
+
 // AsRoutingContext creates a context from context.context with session info.
 func AsRoutingContext(ctx context.Context) routing.Context {
 	outbounds := session.OutboundsFromContext(ctx)