Propertly not declared in Hyperledger Composer

Question

I get that error in the hyperledger composer playground:

enter image description here

That's my submit transaction code:

{
  "$class": "org.example.basic.CarTransaction",
  "car": "resource:org.example.basic.Car#1",
  "newOwner": "resource:org.example.basic.Person#2"
}

It

Answer 1

I think you forgot to add newOwner property in your event in your modal(cto) file.

You didn't provide your code, so your event should be like below(example) :

event CarTransaferEvent {
  --> Car asset
  o String oldOwner
  o String newOwner
}

And now you can emit event whenever transaction occurs. You have to write the code for this in logic.js.