Getting the following error while running query.js of the fabric sample fabcar. 

```
root@ubcourt:/home/fabric-samples/fabcar/javascript# node query.js 

Wallet path: /home/fabric-samples/fabcar/javascript/wallet
2019-08-03T08:45:31.027Z - error: [Channel.js]: Channel:mychannel received discovery error:access denied

2019-08-03T08:45:31.028Z - error: [Channel.js]: Error: Channel:mychannel Discovery error:access denied

2019-08-03T08:45:31.040Z - error: [Channel.js]: Channel:mychannel received discovery error:access denied

2019-08-03T08:45:31.040Z - error: [Channel.js]: Error: Channel:mychannel Discovery error:access denied

```