I run this command
    cd ~/fabric-dev-servers
    export FABRIC_VERSION=hlfv11
    ./startFabric.sh
    ./createPeerAdminCard.sh
 | 
I got this issue
Successfully created business network card file to
    Output file: /tmp/PeerAdmin@hlfv1.card
Command succeeded
Error: Card already exists: PeerAdmin@hlfv1
Command failed
Error: Unable to read required file: metadata.json
Command failed
Hyperledger Composer PeerAdmin card has been imported, host of fabric specified as 'localhost'