我试图通过以下方式从一个存在的频道中获取最新的区块：
peer channel fetch newest mychannel.block -c mychannel --orderer orderer.zee.com:7050 --tls --cafile /opt/gopath/src/github.com/hyperledger/fabric/peer/crypto/ordererOrganizations/zee.com/orderers/orderer.zee.com/msp/tlscacerts/tlsca.zee.com-cert.pem
然后我在当前目录中获得了mychannel.block。 使用此块，我应用了
peer channel join -b mychannel.block --orderer orderer.zee.com:7050\
我希望加入该频道（在通过致电peer channel list检查该对等方不在频道列表中之前）。
但是打印出一个错误：
2018-09-14 12:43:30.931 UTC [grpc] Printf -> DEBU 03b ClientConn switching balancer to "pick_first"
2018-09-14 12:43:30.931 UTC [grpc] Printf -> DEBU 03c pickfirstBalancer: HandleSubConnStateChange: 0xc4204cba90, CONNECTING
2018-09-14 12:43:30.945 UTC [grpc] Printf -> DEBU 03d pickfirstBalancer: HandleSubConnStateChange: 0xc4204cba90, READY
2018-09-14 12:43:30.945 UTC [channelCmd] InitCmdFactory -> INFO 03e Endorser and orderer connections initialized
2018-09-14 12:43:30.946 UTC [msp/identity] Sign -> DEBU 03f Sign: plaintext: 0AAC070A5C08011A0C08F2D9EEDC0510...5DC121D0F96F65155F0CC2910A000A00
2018-09-14 12:43:30.946 UTC [msp/identity] Sign -> DEBU 040 Sign: digest: A8A7A0AA46CC2B9F3683C6EA22C2B6175B2682AB9CF87A94552A8A62A8C8432E
Error: proposal failed (err: bad proposal response 500)
root@22ad397fad46:/opt/gopath/src/github.com/hyperledger/fabric/peer#