Recientemente instalé Hyperledger Explorer. Cuando ejecuta Explorer, no devuelve nada al navegador y da el error:

postgres://hppoc:[email protected]:5432/fabricexplorer
Please open web browser to access ：http://localhost:8080/
[2018-04-16 08:15:18.542] [ERROR] Query - Error: No identity has been assigned to this client
    at Client._getSigningIdentity (/home/ubuntu/blockchain-explorer/node_modules/fabric-client/lib/Client.js:1206:11)
    at Channel.queryInfo (/home/ubuntu/blockchain-explorer/node_modules/fabric-client/lib/Channel.js:896:36)
    at helper.getOrgAdmin.then (/home/ubuntu/blockchain-explorer/app/query.js:98:18)
    at <anonymous>

lo intentéconsole.log la salida deblockchain-explorer/node_modules/fabric-client/lib/Client.js:1206:11 de hecho eladmin variable esundefined

Es bastante extraño ya que instalé Composer antes de esto y funciona perfectamente bien. Todoscrypto-config utiliza la configuración predeterminada proporcionada por el ejemplo Composer.

Versiones (más o menos la última versión estable):

SO: Ubuntu 16.04 LTSDocker: 18.03.0-ceNodo: v8.11.1Tejido Hyperledger: 1.1.0Compositor Hyperledger: 0.19

Exploradorconfig.json más o menos por defecto, sin TLS:

{
    "network-config": {
            "org1": {
                    "name": "hlfv1",
                    "mspid": "Org1MSP",
                    "peer1": {
                            "requests": "grpc://127.0.0.1:7051",
                            "events": "grpc://127.0.0.1:7053",
                            "server-hostname": "peer0.org1.example.com"
                    },
                    "admin": {
                            "key": "/home/ubuntu/fabric-tools/fabric-scripts/hlfv11/composer/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/keystore",
                            "cert": "/home/ubuntu/fabric-tools/fabric-scripts/hlfv11/composer/crypto-config/peerOrganizations/org1.example.com/users/[email protected]/msp/signcerts"
                    }
            }
    },
    "host": "localhost",
    "port": "8080",
    "channel": "composerchannel",
    "keyValueStore": "/tmp/fabric-client-kvs",
    "eventWaitTime": "30000",
    "pg": {
            "host": "127.0.0.1",
            "port": "5432",
            "database": "fabricexplorer",
            "username": "hppoc",
            "passwd": "password"
    },
    "license": "Apache-2.0"
}

¿Algo que me perdí / pistas? Gracias de antemano.