Could not deploy business network to hyperledger fabric beta using composer

Question

I have tried to deploy a business network using composer to but it fails with the following error

Error: event message must be properly signed by an ident

Answer 1

You are running an older version of docker. Level may be checked by invoking the command: docker -v

Invoking the ./prereqs-ubuntu.sh detailed in the 'Installing a developing with Hyperledger Composer' will update the prerequisites accordingly.