进行《使用Golang进行智能合约开发》实验时使用cmc创建合约失败
报错内容：Error: enable cert hash AddCert failed, INVOKE_CONTRACT failed, Add tx failed, The tx pool has stopped, chainId:chain1, txId:186ee2cfd734b3ceca0e306409f8277e970b4feb35574993b2f0ee6ecf6c24c9
查看system.log发现有报错： 2025-10-16 13:51:17.230 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused" 2025-10-16 13:51:17.230 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client_manager.go:265 client[2] connect fail, try again... 2025-10-16 13:51:17.234 [INFO] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:62 start contract engine client[1] 2025-10-16 13:51:17.234 [INFO] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:62 start contract engine client[0] 2025-10-16 13:51:17.235 [INFO] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:62 start contract engine client[4] 2025-10-16 13:51:17.235 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused" 2025-10-16 13:51:17.235 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client_manager.go:265 client[1] connect fail, try again... 2025-10-16 13:51:17.236 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused" 2025-10-16 13:51:17.236 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client_manager.go:265 client[0] connect fail, try again... 2025-10-16 13:51:17.236 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused" 2025-10-16 13:51:17.236 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client_manager.go:265 client[4] connect fail, try again... 2025-10-16 13:51:17.238 [INFO] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:62 start contract engine client[3] 2025-10-16 13:51:17.239 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused" 2025-10-16 13:51:17.239 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client_manager.go:265 client[3] connect fail, try again... 2025-10-16 13:51:19.232 [INFO] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:62 start contract engine client[2] 2025-10-16 13:51:19.233 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused" 2025-10-16 13:51:19.234 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client_manager.go:265 client[2] connect fail, try again... 2025-10-16 13:51:19.236 [INFO] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:62 start contract engine client[1] 2025-10-16 13:51:19.236 [INFO] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:62 start contract engine client[0] 2025-10-16 13:51:19.238 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused" 2025-10-16 13:51:19.238 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client_manager.go:265 client[1] connect fail, try again... 2025-10-16 13:51:19.238 [WARN] [Vm] [31;1m@chain1[0m rpc/contract_engine_client.go:71 fail to get connection stream: rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing dial tcp 127.0.0.1:22351: connect: connection refused"
用telnet查看：
请这种情况如何解决