grpcui (windows): too many colons in the address

I am trying to connect to a grpc service in the local computer from grpcui. I am using this command:

grpcui http://localhost:5110

But I am getting the error that there are too many colons in the address.

I have tried too localhost:5110, http://192.168.1.2:5110 (the ip of the compter), and http://127.0.0.1:5110, but I always get the same error.

How could I set the address to can connect?

Thanks.