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Questions tagged [hyperledger-fabric]

Hyperledger Fabric is an implementation of blockchain technology. Use this tag for questions about this project.

Use this tag for questions about this project.

Another good idea is to reach out to the community at

Documentation can be found at

Refer development lifecycle and officially provided resources at

6206 questions
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error when creating an new channel 'BAD_REQUEST -- error authorizing update: error validating DeltaSet'

I try to create first-network manually instead of using byfn.sh script, and when I try to create channel inside cli container. peer channel create -o orderer.example.com:7050 -c mychannel -f ./channel-artifacts/channel.tx --tls true --cafile…
M-AbdalRahman
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Unable to create PeerAdminCard

I am following this simple tutorial to set up my dev environment . Everything goes fine until I trigger ./createPeerAdminCard.sh which gives error as below Development only script for Hyperledger Fabric control Running 'createPeerAdminCard.sh' …
Atif
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Cryptogen tool not found. Hyperledger fabric installation in Windows 10

I followed the Hyperledger fabric documentation to install and configure it in Windows 10. However when I run the command - "./byfn.sh -m generate" for first-network sample application, I get the following error, I have gone thru all StackOverflow…
Naveen
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Configure Multiple Channel in Hyperledger Fabric

I am trying to make two channels with hyper ledger fabric. In one channel there will be two organizations and in another channel, there will be another two organizations. In every organization, there will be two peers. So total 8 peers in 4…
Swawibe Alam
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Fabric-Sample: Cannot create ledger from genesis block, due to LedgerID already exists

I am trying out the fabric-samples balance-transfer example, I tried to create a new channel with the below commands. The channel gets created but when I try to join the peer to the channel I get the below error. Can anyone suggest the step I am…
Karthik Sukumaran
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/bin/bash: ./scripts/script.sh: No such file or directory when running ./byfn.sh -m up Hyperledger fabric

I am new to blockchain and i was going through the tutorial http://hyperledger-fabric.readthedocs.io/en/latest/build_network.html and doing it. I completed the pre-requisites and download of the samples and binaries. I was able to run ./byfn.sh -m…
Govindaraj M
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Any openssl command line to verify ECDSA prime256v1 certificate and private key match?

I'm now testing the hyperledger/fabric/core/comm/testdata/certs/generate.go to get the ECDSA prime256v1 certificate(Org1-cert.pem) and private key(Org1-key.pem). I want to use a openssl command line to test if the Org1-cert.pem mathes the…
yudizou
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Unable to registerUser for Hyperledger Fabric - fabcar sample project

I try to run sample application as stated here : http://hyperledger-fabric.readthedocs.io/en/release/write_first_app.html Everything looks good until I ran this command : node registerUser Error : Store …
shkhssn
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How do I deploy hyperledger fabric/composer in the cloud?

I've finished the Hyperledger Composer tutorial and successfully deployed/run it locally (with composer-rest-server). Now I want to deploy it (eg. Google Cloud) so that I can show it to external people, but I feel confused about what to do now and…
Einar
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Hyperledger fabric v1.0: multiple orderers

I'm currently working on a POC using hyperledger fabric + composer. I am somewhat confused when it gets to the consensus mechanism between orderers. From what i understand reading the documentation, hyperledger currently only supports SOLO and…
KPNT
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How to add a new peer to an existing Hyperledger Fabric network?

When you create a hyperledger fabric network, you define organizations, orderers and peers in crypto-config.yaml and configtx.yaml. But how do you add a new organization or a new peer to an existing organization in a network that is already setup?…
Joaquim Oliveira
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Unable to find custom chaincode path Hyperledger Fabricv1.0 local network running on windows7

I am trying to install my custom chain code in my local Hyperledger Fabric v1.0 environment. For this I have followed the documentation build your first network and I am using first network sample with in the github project. No it is up and running…
Girish007
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Using passport-http on Hyperledger composer REST API

I would like to know if it is possible to use passport-http to secure the REST API of Hyperledger Composer generated with the composer-rest-server and what would be the export COMPOSER_PROVIDERS='{}' configuration. The idea is to use the identities…
arkandas
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How to configure multiple anchor peers

I learned form this site that each member on a channel can have multiple anchor peers to prevent SPOF. I would like to try multiple anchor peer in fabcar-demo. Kindly let me know how to configure multiple anchor peers.
SKuri
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Cryptocurrency based on Hyperledger

Does Hyperledger Fabric support possibility to create a cryptocurrency like well know Bitcoin/Ethereum? I don't mean tokens which I can implement by chaincode.
Kirill Bulgakov
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