Linux上部署fabric最后报错，求解答呜呜

 ____    _____      _      ____    _____           _____   ____    _____ 
/ ___|  |_   _|    / \    |  _ \  |_   _|         | ____| |___ \  | ____|
\___ \    | |     / _ \   | |_) |   | |    _____  |  _|     __) | |  _|  
 ___) |   | |    / ___ \  |  _ <    | |   |_____| | |___   / __/  | |___ 
|____/    |_|   /_/   \_\ |_| \_\   |_|           |_____| |_____| |_____|

Channel name : mychannel
Check orderering service availability...
Attempting to fetch system channel 'testchainid' ...3 secs
Attempting to fetch system channel 'testchainid' ...7 secs
Attempting to fetch system channel 'testchainid' ...11 secs
Attempting to fetch system channel 'testchainid' ...14 secs
Attempting to fetch system channel 'testchainid' ...17 secs
Attempting to fetch system channel 'testchainid' ...26 secs
Attempting to fetch system channel 'testchainid' ...29 secs
Attempting to fetch system channel 'testchainid' ...32 secs
Attempting to fetch system channel 'testchainid' ...36 secs
Attempting to fetch system channel 'testchainid' ...39 secs
Attempting to fetch system channel 'testchainid' ...42 secs
Attempting to fetch system channel 'testchainid' ...45 secs
Attempting to fetch system channel 'testchainid' ...48 secs
Attempting to fetch system channel 'testchainid' ...51 secs
Attempting to fetch system channel 'testchainid' ...54 secs
Attempting to fetch system channel 'testchainid' ...57 secs
Attempting to fetch system channel 'testchainid' ...61 secs
2022-06-02 04:22:35.125 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP
2022-06-02 04:22:35.125 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity
2022-06-02 04:22:35.128 UTC [grpc] Printf -> DEBU 003 grpc: addrConn.resetTransport failed to create client transport: connection error: desc = "transport: Error while dialing dial tcp: lookup orderer.example.com: no such host"; Reconnecting to {orderer.example.com:7050 }
Error: Error connecting due to  rpc error: code = Unavailable desc = grpc: the connection is unavailable
Usage:
  peer channel fetch  [outputfile] [flags]

Flags:
  -c, --channelID string   In case of a newChain command, the channel ID to create.

Global Flags:
      --cafile string              Path to file containing PEM-encoded trusted certificate(s) for the ordering endpoint
      --logging-level string       Default logging level and overrides, see core.yaml for full syntax
  -o, --orderer string             Ordering service endpoint
      --test.coverprofile string   Done (default "coverage.cov")
      --tls                        Use TLS when communicating with the orderer endpoint
  -v, --version                    Display current version of fabric peer server

!!!!!!!!!!!!!!! Ordering Service is not available, Please try again ... !!!!!!!!!!!!!!!!
================== ERROR !!! FAILED to execute End-2-End Scenario ==================

之前在网上找过一些帖子，但是提出的解决方式都没有太大用，求解答呜呜