VM Exception while processing transaction: reverted with custom error 'InvalidConsumer()'

[blaynejosh]

Hello,
I don't know how to fix this error: VM Exception while processing transaction: reverted with custom error 'InvalidConsumer()'

it happens during my unit test.
Here's my code:

const { assert, expect } = require("chai")
const { getNamedAccounts, deployments, ethers, network } = require("hardhat")
const { developmentChains, networkConfig } = require("../../helper-hardhat-config")

!developmentChains.includes(network.name)
    ? describe.skip
    : describe("Rafflle Unit Tests", async function () {
          let raffle, vrfCoordinatorV2Mock, raffleEntranceFee, deployer, interval
          const chainId = network.config.chainId

          beforeEach(async function () {
              deployer = (await getNamedAccounts()).deployer
              await deployments.fixture(["all"])
              raffle = await ethers.getContract("Raffle", deployer)
              vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock", deployer)
              raffleEntranceFee = await raffle.getEntranceFee()
              interval = await raffle.getInterval()
          })

          describe("constructor", async function () {
              it("Initializes the raffle correctly", async function () {
                  const raffleState = await raffle.getRaffleState()
                  assert.equal(raffleState.toString(), "0")
                  assert.equal(interval.toString(), networkConfig[chainId]["interval"])
              })
          })

          describe("enterRaffle", async function () {
              it("reverts when you don't pay enough ETH", async function () {
                  await expect(raffle.enterRaffle()).to.be.revertedWith(
                      "Raffle__NotEnoughETHEntered"
                  )
              })
              it("Records players when they enter", async function () {
                  await raffle.enterRaffle({ value: raffleEntranceFee })
                  const playerFromContract = await raffle.getPlayer(0)
                  assert.equal(playerFromContract, deployer)
              })
              it("emits event on enter", async function () {
                  await expect(raffle.enterRaffle({ value: raffleEntranceFee })).to.emit(
                      raffle,
                      "RaffleEnter"
                  )
              })
              it("doesn't allow entrance when raffle is calculating", async function () {
                  await raffle.enterRaffle({ value: raffleEntranceFee })
                  await network.provider.send("evm_increaseTime", [interval.toNumber() + 1])
                  await network.provider.send("evm_mine", [])
                  // Pretending to be a Chainlink Keeper below
                  await raffle.performUpkeep([])
                  await expect(raffle.enterRaffle({ value: raffleEntranceFee })).to.be.revertedWith(
                      "Raffle__NotOpen"
                  )
              })
          })
      })

[alymurtazamemon]

@blaynejosh use the chainlink 0.4.0 version.

npm i --save-dev @chainlink/contracts@0.4.0

[uditrajawat]

@blaynejosh it is asking for a consumer. There was no consumer added to the subscription at the time of creation and deployment of raffle. While running test it is looking for that consumer which isn't there. In your deploy script add a consumer. You only need to do it for local network as tests are run locally.

add await vrfCoordinatorV2Mock.addConsumer(subscriptionId, raffle.address); after the raffle contract is deployed

alternatively the consumer can be added during unit testing by getting the subscriptionId from the raffle

--=>also add getter function of subscriptionId in raffle.sol if you are getting error:subscriptionId is not a function

[tvstetten]

Thank's for the solution(s)!

[umairahmed88]

@alymurtazamemon correct solution

[arvinzty]

Thanks, my superman.

[orishameedah]

Thanks so much the solution worked

[MarsIfeanyi]

Thanks, this works

[mikon0606]

I added it to 0.4.0,but got error
Error HH404: File @chainlink/contracts/src/v0.8/interfaces/AutomationCompatibleInterface.sol, imported from contracts/Raffle.sol, not found.

[olaoyesalem]

npm i --save-dev @chainlink/contracts@0.4.0
@alymurtazamemon Thanks. This works. But why?

[alymurtazamemon]

@olaoyesalem This is old, now you should not use this. Instead check out this #1375

[olaoyesalem]

Okay. Thank you!