Error while starting hyperledger explorer with fabric v1.2 - hyperledger-fabric

Question

Getting the following error while starting explorer:
<<<<<<<<<<<<<<<<<<<<<<<<<< Explorer Error >>>>>>>>>>>>>>>>>>>>>
TypeError: Cannot read property 'size' of undefined
at Platform.initialize (/home/kp/Desktop/blockchain-explorer/app/platform/fabric/Platform.js:52:45)
at <anonymous>
at process._tickCallback (internal/process/next_tick.js:188:7)
Received kill signal, shutting down gracefully
Closed out connections
Using Fabric v1.2 and Explorer v0.3.6 I have replaced grpcs with grpc but that is also not helping much. Not sure on where to pass 'size' property in the config file.
{
"network-configs":{
"network-1":{
"version":"1.0",
"clients":{
"client-1":{
"tlsEnable":true,
"organization":"Org1MSP",
"channel":"mychannel",
"credentialStore":{
"path":"./tmp/credentialStore_Org1/credential",
"cryptoStore":{
"path":"./tmp/credentialStore_Org1/crypto"
}
}
}
},
"channels":{
"mychannel":{
"peers":{
"peer0.org1.example.com":{
}
},
"connection":{
"timeout":{
"peer":{
"endorser":"6000",
"eventHub":"6000",
"eventReg":"6000"
}
}
}
}
},
"organizations":{
"Org1MSP":{
"mspid":"Org1MSP",
"fullpath":false,
"adminPrivateKey":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/Admin#org1.example.com/msp/keystore/"
},
"signedCert":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/users/Admin#org1.example.com/msp/signcerts/"
}
},
"Org2MSP":{
"mspid":"Org2MSP",
"adminPrivateKey":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/peerOrganizations/org2.example.com/users/Admin#org2.example.com/msp/keystore/"
}
},
"OrdererMSP":{
"mspid":"OrdererMSP",
"adminPrivateKey":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/ordererOrganizations/example.com/users/Admin#example.com/msp/keystore/"
}
}
},
"peers":{
"peer0.org1.example.com":{
"tlsCACerts":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt"
},
"url":"grpc://localhost:7051",
"eventUrl":"grpc://localhost:7053",
"grpcOptions":{
"ssl-target-name-override":"peer0.org1.example.com"
}
},
"peer1.org1.example.com":{
"tlsCACerts":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/peers/peer1.org1.example.com/tls/ca.crt"
},
"url":"grpc://localhost:8051",
"eventUrl":"grpc://localhost:8053",
"grpcOptions":{
"ssl-target-name-override":"peer1.org1.example.com"
}
},
"peer0.org2.example.com":{
"tlsCACerts":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/peerOrganizations/org2.example.com/peers/peer0.org2.example.com/tls/ca.crt"
},
"url":"grpc://localhost:9051",
"eventUrl":"grpc://localhost:9053",
"grpcOptions":{
"ssl-target-name-override":"peer0.org2.example.com"
}
},
"peer1.org2.example.com":{
"tlsCACerts":{
"path":"/home/kp/Desktop/bct/fabric-samples/first-network/crypto-config/peerOrganizations/org2.example.com/peers/peer1.org2.example.com/tls/ca.crt"
},
"url":"grpc://localhost:10051",
"eventUrl":"grpc://localhost:10053",
"grpcOptions":{
"ssl-target-name-override":"peer1.org2.example.com"
}
}
},
"orderers":{
"orderer.example.com":{
"url":"grpc://localhost:7050"
}
}
},
"network-2":{
}
},
"configtxgenToolPath":"/home/kp/Desktop/bct/fabric-samples/bin/",
"license":"Apache-2.0"
}

Answer 1

TypeError: Cannot read property 'size' of undefined
at Platform.initialize (/home/kp/Desktop/blockchain-explorer/app/platform/fabric/Platform.js:52:45)
According to Platform.js, it means to have been failed to load your config.json in some reason. You need to review with the following view points:
Check logs/app/app.log
Difference from orignal config.json
And I don't think it related to this problem, but you need to turn 'tlsEnable' in config.json into 'false' when disabling TLS.
{
"network-configs": {
"network-1": {
"clients": {
"client-1": {
"tlsEnable": false,
^^^^^

Answer 2

Do you have any solution for this problem?
I deployed Hyperledger Explorer Step by Step with link
https://github.com/hyperledger/blockchain-explorer and I got the same error with you
I use with fabric v1.2 and composer v0.20.0

Answer 3

I get the same error, on my side the tag "network-configs": was missing.
In the console log, just before this error, I get a msg saying '******* Initialization started for hyperledger fabric platform ******,',undefined
If you checked the code in platform.js you can see that the undefined variable correspond to network-configs.
I created a simple config.json file in the original folder like the following :
{
"network-configs": {
"first-network": {
"name": "firstnetwork",
"profile": "./connection-profile/first-network.json",
"enableAuthentication": false
}
},
"license": "Apache-2.0"
Than I created a full profile doc starting with
{
"name": "first-network",
"version": "1.0.0",
I am not sure if splitting the file is really necessary but anyway on my side this procedure fixed the issue.