I’ve been working with Hyperledger Fabric and ran into an error while testing with the Python SDK. The error message I get is:

“error”: “<_MultiThreadedRendezvous of RPC that terminated with:ntstatus = StatusCode.UNKNOWNntdetails = “error validating proposal: access denied: channel [mychannel3] creator org [m-R6N74MK65FF57DMGWPW47LSRBI]”ntdebug_error_string = “UNKNOWN:Error received from peer {created_time:”2024-08-03T09:07:56.240768411+00:00″, grpc_status:2, grpc_message:”error validating proposal: access denied: channel [mychannel3] creator org [m-R6N74MK65FF57DMGWPW47LSRBI]”}”n>”

I think issue with signing transaction as query with SDK is working well. Can I know which certificate to passed and where?

Additionally, if I change the user cert to admin-msp/signcerts/cert.pem, I get a different error: “Socket connection closed”.

Any ideas on what might be causing this issue and how to resolve it? Thanks!

Here’s my JSON configuration:

{
   "name":"%networkname%",
   "description":"Sample network contains 2 peers and 1 CA for Python SDK testing",
   "version":"1.0",
   "channels":{
      "mychannel3":{
         "orderers":[
            "orderer.example.com"
         ],
         "peers":{
            "peer0.%org1%.example.com":{
               "endorsingPeer":true,
               "chaincodeQuery":true,
               "ledgerQuery":true,
               "eventSource":true
            },
            "peer1.%org1%.example.com":{
               "endorsingPeer":true,
               "chaincodeQuery":true,
               "ledgerQuery":true,
               "eventSource":true
            }
         }
      }
   },
   "organizations":{
      "Org1":{
         "mspid":"%memeber_id%",
         "peers":[
            "peer0.%org1%.example.com",
            "peer1.%org1%.example.com"
         ],
         "certificateAuthorities":[
            "ca-%org1%"
         ],
         "users":{
            "jona":{
               "cert":"%path_to_cert%",
               "private_key":"%path_to_private_key%"
            }
         }
      }
   },
   "orderers":{
      "orderer.example.com":{
         "url":"%orderer_url%",
         "grpcOptions":{
            "ssl-target-name-override":"%orderer_url without port%"
         },
         "tlsCACerts":{
            "path":"%path_to_tlsCACerts%"
         }
      }
   },
   "peers":{
      "peer0.%org1%.example.com":{
         "url":"%peer0_url%",
         "eventUrl":"%peer0_eventUrl%",
         "grpcOptions":{
            "ssl-target-name-override":"%peer0_url_without_port%"
         },
         "tlsCACerts":{
            "path":"%path_to_tlsCACerts%"
         }
      },
      "peer1.%org1%.example.com":{
         "url":"%peer1_url%",
         "eventUrl":"%peer1_eventUrl%",
         "grpcOptions":{
            "ssl-target-name-override":"%peer1_url_without_port%"
         },
         "tlsCACerts":{
            "path":"%path_to_tlsCACerts%"
         }
      }
   },
   "certificateAuthorities":{
      "ca-%org1%":{
         "url":"%ca_url%",
         "httpOptions":{
            "verify":false
         },
         "tlsCACerts":{
            "path":"%path_to_tlsCACerts%"
         },
         "caName":"%ca_name%"
      }
   },
   "client":{
      "organization":"%org1%",
      "credentialStore":{
         "path":"%path_to_credential_store%",
         "cryptoStore":{
            "path":"%path_to_crypto_store%"
         },
         "wallet":"%wallet_name%"
      }
   }
}