我正在尝试为我的区块链网络运行 Hypeledger Explorer。我使用Hyperldger Explorer几乎逐字逐句地按照说明进行操作， 但是每当我进行最后一次调用时：./start.sh --- 我都会遇到一连串错误
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
...
等等。有关更多信息，我正在使用 nodejs 6.9 和 PostgreSQL 9.5。这是我的 config.json 文件的外观：
{
"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"
}}