unable to resolve type URL error when running tests

[akankshadhyani05]

Hi, I am running an appchain using the latest sdk version (0.50.8) and I am trying to run test but I am getting error in my code which I have posted below:
Error is originating from this code(here cctptypes is a dependency that i am importing in my repo):

msgs := []sdk.Msg{}

msgs = append(msgs, &cctptypes.MsgAddRemoteTokenMessenger{
	From:     gw.fiatTfRoles.Owner.FormattedAddress(),
	DomainId: 0,
	Address:  tokenMessenger,
})

The error is:
"unable to resolve type URL /cctp.MsgAddRemoteTokenMessenger"

I have pasted the code snippet of its tx.pb.go file :

proto.RegisterType((*MsgAddRemoteTokenMessenger)(nil), "cctp.MsgAddRemoteTokenMessenger")
proto.RegisterType((*MsgAddRemoteTokenMessengerResponse)(nil), "cctp.MsgAddRemoteTokenMessengerResponse")
where could the issue be?

I have added these lines in my app.go file:

app.BasicModuleManager = module.NewBasicManagerFromManager(
app.mm,
map[string]module.AppModuleBasic{
genutiltypes.ModuleName: genutil.NewAppModuleBasic(genutiltypes.DefaultMessageValidator),
govtypes.ModuleName: gov.NewAppModuleBasic(
[]govclient.ProposalHandler{
paramsclient.ProposalHandler,
},
),
CCTPModuleName: cctp.AppModuleBasic{}
},
)

app.BasicModuleManager.RegisterLegacyAminoCodec(legacyAmino)
app.BasicModuleManager.RegisterInterfaces(interfaceRegistry)

[misko9]

If this is an error in the interchaintest logs, you can try setting a custom encoding config in your chain config. I.e.:

import (
         cctptypes "github.com/yourorg/yourchain/cctptypes"
	"github.com/cosmos/cosmos-sdk/types/module/testutil"
	"github.com/strangelove-ventures/interchaintest/v8/chain/cosmos"
)

func EncodingConfigWithCctp() *testutil.TestEncodingConfig{
  cfg := cosmos.DefaultEncoding()
  cctptypes.RegisterInterface(cfg.InterfaceRegistry)
  return &cfg
}

...
cf := interchaintest.NewBuiltinChainFactory(zaptest.NewLogger(t), []*interchaintest.ChainSpec{
	{
		ChainConfig: ibc.ChainConfig{
			Type:    "cosmos",
			Name:    "custom",
			...
			EncodingConfig: EncodingConfigWithCctp(),
		},
	},
})
...