Received this error when running ‘node invoke.js’
Open invoke.js in your text editor.
comment lines 105 and 106
//let event_hub = fabric_client.newEventHub();
add this line instead.
let event_hub = channel.newChannelEventHub('localhost:7051');
Then comment line 131
//console.log('The transaction has been committed on peer ’ + event_hub._ep._endpoint.addr);
and add the below line instead.
console.log('The transaction has been committed on peer ' + event_hub.getPeerAddr());
Now save the file and execute. It should work now.