Hyperledger fabcar sample fabric showing connect failed ERROR

问题

I am trying to install hyperledger and run chain code. I followed all the steps as directed here. But getting error

error: [client-utils.js]: sendPeersProposal - Promise is rejected: Error: Connect Failed

while running the query.js. I have following active docker running Before running the node query.js, when i am running npm install its giving following warning : npm WARN fabcar@1.0.0 No repository field. Is this the problem. Can any one please help me out about where it is going wrong.

回答1:

I have met the same error during run sample, it failed to connect. I fixed it with following steps:

1. get machine IP address with: ifconfig
2. replace localhosts in query.js with IP in #1

Example:

@@ -12,7 +12,7 @@ var options = {
     user_id: 'PeerAdmin',
     channel_id: 'mychannel',
     chaincode_id: 'fabcar',
-    network_url: 'grpc://localhost:7051',
+    network_url: 'grpc://****:7051',
};

回答2:

Addition to Angela's answer:

To anyone having this issue and using Docker Toolbox, do docker-machine ls and copy the IP adress at the URL column of your ACTIVE machine and paste the IP adress to every localhost in both query.js and invoke.js files.

回答3:

I have seen that error occur when datasources.json specifies that the network addresses start with grpcs://, but the network is not set up to use TLS. Try changing them to start with grpc://.

回答4:

Do docker-machine ls

Output:

$ docker-machine ls NAME ACTIVE DRIVER STATE URL SWARM DOC default virtualbox Running tcp://192.168.99.100:2376 v17

• copy the ip address mentioned , like : 192.168.99.100
• go to \fabric-samples\fabcar\query.js
• replace the localhost with the IP address

来源：https://stackoverflow.com/questions/44917705/hyperledger-fabcar-sample-fabric-showing-connect-failed-error