postgresql - Hyperledger Explorer エラー 12 未実装: サービス protos.Endorser

Question

ブロックチェーン ネットワーク用に Hypeledger Explorer を実行しようとしています。Hyperldger Explorerを使用してほぼ一語一語指示に従いました が、最終呼び出し ./start.sh を実行するたびに --- 大量のエラーが発生します

error: [client-utils.js]: sendPeersProposal - Promise is rejected: Error: 12 UNIMPLEMENTED: unknown service protos.Endorser at new createStatusError (/home/ubuntu/bludev/blockchain-explorer/node_modules/grpc/src/client.js:64:15) at /home/ubuntu/bludev/blockchain-explorer/node_modules/grpc/src/client.js:583:15 error: [Client.js]: Failed Installed Chaincodes Query. Error: Error: 12 UNIMPLEMENTED: unknown service protos.Endorser at new createStatusError (/home/ubuntu/bludev/blockchain-explorer/node_modules/grpc/src/client.js:64:15) at /home/ubuntu/bludev/blockchain-explorer/node_modules/grpc/src/client.js:583:15 ...

等々。詳細については、nodejs 6.9 と PostgreSQL 9.5 を使用しています。これは私のconfig.jsonファイルの外観です：

{

"network-config": {
    "org1": {
        "name": "peerOrg1",
        "mspid": "Org1MSP",
        "peer1": {
            "requests": "grpc://127.0.0.1:7051",
            "events": "grpc://127.0.0.1:7053",
            "server-hostname": "peer0.org1.example.com",
            "tls_cacerts": "/home/ubuntu/bludev/fabric-samples/first-network/crypto-config/peerOrganizations/org1.example.com/peers/peer0.org1.example.com/tls/ca.crt"
        },
        "admin": {
            "key": "/home/ubuntu/bludev/hlcomposer/fabric-dev-servers/fabric-scripts/hlfv1/composer/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/keystore",
            "cert": "/home/ubuntu/bludev/hlcomposer/fabric-dev-servers/fabric-scripts/hlfv1/composer/crypto-config/peerOrganizations/org1.example.com/users/Admin@org1.example.com/msp/signcerts"
        }
    }
},
"host": "localhost",
    "port": "3000",
    "channel": "mychannel",
    "keyValueStore": "/tmp/fabric-client-kvs",
    "eventWaitTime": "30000",
    "pg": {
            "host": "12.109.99.233",
            "port": "3000",
            "database": "fabricexplorer",
            "username": "postgres",
            "passwd": "password1"
    }}