can t instantiate chaincode after upgrade of new chaincode

Question

I have done upgrade of chaincode. Steps followed:

1.Install with new version

2.Upgrade with new version

3. Instantiate of new version(error:could not assemble transaction, err proposal response was not successful, error code 500, msg chaincode with name 'fabcar' already exists)

Answer 1

The error tells that a chaincode by the name 'fabcar' already exists probably because this was instantiated when you were using the older version. Either instantiate the chaincode with a new name or delete the existing chaincode and the instantiate the chaincode as follows:

docker stop $(docker ps -aq)
docker rm -f $(docker ps -aq)