If the following error occurs
2018-01-25 08:11:11.384 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity
Error: Error getting endorser client channel: PER:404 - Error trying to connect to local peer
/opt/gopath/src/github.com/hyperledger/fabric/peer/common/common.go:116 github.com/hyperledger/fabric/peer/common.GetEndorserClient
/opt/gopath/src/github.com/hyperledger/fabric/peer/channel/channel.go:149 github.com/hyperledger/fabric/peer/channel.InitCmdFactory /opt/gopath/src/github.com/hyperledger/fabric/peer/channel/join.go:138 github.com/hyperledger/fabric/peer/channel.join /opt/gopath/src/github.com/hyperledger/fabric/peer/channel/join.go:42 github.com/hyperledger/fabric/peer/channel.joinCmd.func1 /opt/gopath/src/github.com/hyperledger/fabric/vendor/github.com/spf13/cobra/command.go:599 github.com/hyperledger/fabric/vendor/github.com/spf13/cobra.(*Command).execute /opt/gopath/src/github.com/hyperledger/fabric/vendor/github.com/spf13/cobra/command.go:689 github.com/hyperledger/fabric/vendor/github.com/spf13/cobra.(*Command).ExecuteC /opt/gopath/src/github.com/hyperledger/fabric/vendor/github.com/spf13/cobra/command.go:648 github.com/hyperledger/fabric/vendor/github.com/spf13/cobra.(*Command).Execute /opt/gopath/src/github.com/hyperledger/fabric/peer/main.go:118 main.main /opt/go/src/runtime/proc.go:192 runtime.main /opt/go/src/runtime/asm_amd64.s:2087 runtime.goexit Caused by: x509: certificate is valid for peer0.org1.example.com, peer0, not peer1.org1.example.com Usage: peer channel join [flags] Flags: -b, --blockpath string Path to file containing genesis block 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 !!!!!!!!!!!!!!! After 5 attempts, PEER1 has failed to Join the Channel !!!!!!!!!!!!!!!! ================== ERROR !!! FAILED to execute End-2-End Scenario ==================
and the following error
2018-01-25 08:12:03.436 UTC [msp] GetLocalMSP -> DEBU 001 Returning existing local MSP
2018-01-25 08:12:03.436 UTC [msp] GetDefaultSigningIdentity -> DEBU 002 Obtaining default signing identity
2018-01-25 08:12:03.442 UTC [grpc] Printf -> DEBU 003 Failed to dial orderer.example.com:7050: connection error: desc = "transport: authentication handshake failed: x509: certificate signed by unknown authority (possibly because of \"x509: ECDSA verification failure\" while trying to verify candidate authority certificate \"tlsca.example.com\")"; please retry.
Error: Error connecting due to rpc error: code = Internal desc = connection error: desc = "transport: authentication handshake failed: x509: certificate signed by unknown authority (possibly because of \"x509: ECDSA verification failure\" while trying to verify candidate authority certificate \"tlsca.example.com\")" Usage: peer channel create [flags]
Flags: -c, --channelID string In case of a newChain command, the channel ID to create. -f, --file string Configuration transaction file generated by a tool such as configtxgen for submitting to orderer -t, --timeout int Channel creation timeout (default 5) 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 !!!!!!!!!!!!!!! Channel creation failed !!!!!!!!!!!!!!!! ================== ERROR !!! FAILED to execute End-2-End Scenario ==================
All because of environmental problems
The solution is to turn off the network again
./network_setup.sh down mychannel