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Discussion on: Getting started with Hyperledger Composer and private blockchains

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mohinimraut

When I restart my composer Rest Server I faced following error:
mohinir@rpqbsrv001:~/fabric-tools/landregistry$ composer-rest-server
? Enter the name of the business network card to use: admin@landregistry
? Specify if you want namespaces in the generated REST API: never use namespaces
? Specify if you want to use an API key to secure the REST API: No
? Specify if you want to enable authentication for the REST API using Passport: No
? Specify if you want to enable event publication over WebSockets: Yes
? Specify if you want to enable TLS security for the REST API: No

To restart the REST server using the same options, issue the following command:
composer-rest-server -c admin@landregistry -n never -w true

Discovering types from business network definition ...
Connection fails: Error: Error trying to ping. Error: make sure the chaincode landregistry has been successfully instantiated and try again: getccdata composerchannel/landregistry responded with error: could not find chaincode with name 'landregistry'
It will be retried for the next request.
Exception: Error: Error trying to ping. Error: make sure the chaincode landregistry has been successfully instantiated and try again: getccdata composerchannel/landregistry responded with error: could not find chaincode with name 'landregistry'
Error: Error trying to ping. Error: make sure the chaincode landregistry has been successfully instantiated and try again: getccdata composerchannel/landregistry responded with error: could not find chaincode with name 'landregistry'
at _checkRuntimeVersions.then.catch (/home/mohinir/.nvm/versions/node/v8.11.3/lib/node_modules/composer-rest-server/node_modules/composer-connector-hlfv1/lib/hlfconnection.js:806:34)
at