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I'm working on the hyperledger blockchain on Ubuntu 18-04 LTS via this tuto hyperledger.github.io/composer/latest/tutorials/developer-tutorial . I have installed all the pre-requisites and in this step of running "composer network install", I faced this issue and tried some solutions but still not working. Any help please ? Thanks ! 

~/tutorial-network$ composer network install --card PeerAdmin@hlfv1 --archiveFile tutorial-network@0.0.1.bna

✖ Installing business network. This may take a minute... Error: Error trying install business network. Error: No valid responses from any peers. Response from attempted peer comms was an error: Error: Failed to connect before the deadline Command failed

Docker ps and version

Amine Kaabar
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    can you post the output of `docker ps` - What Composer version are you using? – Paul O'Mahony Sep 05 '18 at 13:56
  • I added the result of docker ps and version to the question. Thanks for your help ! – Amine Kaabar Sep 05 '18 at 14:45
  • based on the output of `docker ps` your fabric network is not running - the answer below. You need to download Fabric docker images and set it up - Step Four of [this page](https://hyperledger.github.io/composer/latest/installing/development-tools.html) describes how to stand it up, then follow the section "Controlling your dev environment" in that link - to save/ your Fabric environment (if you shutdown your m/c) - see answer 2 here -> https://stackoverflow.com/questions/48070818/how-to-restart-the-fabric-composer-without-losing-the-existing-data – Paul O'Mahony Sep 05 '18 at 15:40
  • Thanks to you all ! it works ! – Amine Kaabar Sep 06 '18 at 12:01

2 Answers2

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your fabric network is not running.

go to your fabric-dev-servers folder and run ./startFabric.sh

if you get any errors there, like some containers already exist then do a ./teardownFabric.sh first then run the start command again.

This will give you a basic running network with one org, one peer and one orderer.

Once your network is running then you need to create your admin card by running ./createPeerAdminCard.sh

only at this point you are ready to install and start your chaincode.

Andrei Dragotoniu
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Just mentioning this for others who might face this issue - While in your case fabric network was not running, in my case it was an issue with proxy. Once I cleared that, I was able to deploy successfully.

Sruts
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