我目前正在使用Hyperledger Fabric样本。我已经根据可用的教程成功运行了first-network和fabcar。我现在正在尝试将两者结合起来，以在一个组织中与3个对等方组成一个网络，并使用节点sdk进行查询，等等。这里提供了我当前的fabric-samples目录的回购。我已经能够使用byfn.sh构建网络，enrollAdmin.js和registerUser.js。尝试查询或调用时遇到了以下问题：
Store path:/home/victor/fabric-samples/first-network/hfc-key-store
Successfully loaded user1 from persistence
Assigning transaction_id: bc0240f672d075de2f84d50b292ed0e2214dacc0ef2888d0fa7e25d872a99b03
error: [client-utils.js]: sendPeersProposal - Promise is rejected: Error: 2 UNKNOWN: access denied: channel [mychannel] creator org [Org1MSP]
at new createStatusError (/home/victor/fabric-samples/first-network/node_modules/grpc/src/client.js:64:15)
at /home/victor/fabric-samples/first-network/node_modules/grpc/src/client.js:583:15
error: [client-utils.js]: sendPeersProposal - Promise is rejected: Error: 2 UNKNOWN: access denied: channel [mychannel] creator org [Org1MSP]
at new createStatusError (/home/victor/fabric-samples/first-network/node_modules/grpc/src/client.js:64:15)
at /home/victor/fabric-samples/first-network/node_modules/grpc/src/client.js:583:15
error: [client-utils.js]: sendPeersProposal - Promise is rejected: Error: 2 UNKNOWN: access denied: channel [mychannel] creator org [Org1MSP]
at new createStatusError …