i have some problems，please #1
Description
i follow your directions ，bring up the network and npm install，but when i do npm start，it reports that
ERROR [lib/handler.js] Chat stream with peer - on error: "Error: 12 UNIMPLEMENTED: unknown service protos.ChaincodeSupport\n at Object.exports.createStatusError (/root/dev/go/src/github.com/fabric-samples/basic-network/crypto-config/digital_health_fabric/node_modules/_grpc@1.19.0@grpc/src/common.js:91:15)\n
i have tried for many times。。but it‘s useless