TypeError: Cannot read properties of undefined (reading 'checkUpkeep')

[ghost]

the error is

     TypeError: Cannot read properties of undefined (reading 'checkUpkeep')

code

 describe("checkUpkeep", () => {
              it("returns false if people haven't sent any eth", async () => {
                  await network.provider.send("evm_increaseTime", [interval.toNumber() + 1])
                  await network.provider.send("evm_mine", [])
                  const { upkeepNeeded } = await raffle.callstatic.checkUpkeep("0x")
                  assert(!upkeepNeeded)
              })
          })

i tried putting [ ] in checkUpkeep( ) but it did not work too

[Muhammad-Abdullah012]

Make sure you're correctly initializing raffle.
Show that code as well.

raffle = await ethers.getContract("Raffle", deployer);

[ghost]

here's the code

beforeEach(async () => {
              deployer = (await getNamedAccounts()).deployer
              await deployments.fixture(["all"])
              raffle = await ethers.getContract("Raffle", deployer) //get the deployed contract and connect it to the deployer
              vrfCoordinatorV2Mock = await ethers.getContract("VRFCoordinatorV2Mock", deployer)
              raffleEntranceFee = await raffle.getEntranceFee()
              interval = await raffle.getLastTimeStamp()
          })

[Muhammad-Abdullah012]

I think...

const { upkeepNeeded } = await raffle.callStatic.checkUpkeep([]);

it's callStatic not callstatic

[ghost]

oh i see,

thank you so much!

[Block-RS]

I run into the same error like you

Have you solved it yet?

[NickoMenty]

I am using new hardhat with toolbox
and here is my BeforeEach:

beforeEach(async () => {
              accounts = await ethers.getSigners() // could also do with getNamedAccounts
              //   deployer = accounts[0]
              player = accounts[1]

              deployer = (await getNamedAccounts()).deployer
              const contracts = await deployments.fixture(["mocks", "raffle"]) // Deploys modules with the tags "mocks" and "raffle"

              const raffleContractInstance = contracts["Raffle"] // Returns a new connection to the Raffle contract
              raffleContract = await ethers.getContractAt(
                  "Raffle",
                  raffleContractInstance.address,
                  deployer,
              )
              raffle = raffleContract.connect(player) // Returns a new instance of the Raffle contract connected to player
              // console.log(raffleContractInstance)

              const vrfCoordinatorV2MockInstance = contracts["VRFCoordinatorV2Mock"] // Returns a new connection to the VRFCoordinatorV2Mock contract
              vrfCoordinatorV2Mock = await ethers.getContractAt(
                  "Raffle",
                  vrfCoordinatorV2MockInstance.address,
                  deployer,
              )

              raffleEnterenceFee = await raffle.getEnteranceFee()
              interval = await raffle.getInterval()
          })

With this code, this function

const { upkeepNeeded } = await raffle.callStatic.checkUpkeep([]);

gives me the same "TypeError: Cannot read properties of undefined (reading 'checkUpkeep') " error

What I did is

const { upkeepNeeded } = await raffle.checkUpkeep("0x") // we can simulate calling function by adding .callStatic
assert(!upkeepNeeded)

And it works

however, if you do

console.log(upkeepNeeded )

it will return undefinded, but should return false. So maybe it isn't the best option. However I can't find another solution

[PhucDao-PLab]

Try this line:

 const { upkeepNeeded } = await raffle.checkUpkeep.staticCall(
            new Uint8Array(),
          );

[AyodejiKomolafe]

this works too
const { upkeepNeeded } = await raffle.checkUpkeep.staticCall("0x");

[SWank74]

Its part of breaking changes in Ethers 6.

Replace

const { upkeepNeeded } = await raffle.callStatic.checkUpkeep([]);

with

const{ upkeepNeeded } = await raffle.checkUpkeep.staticCall("0x");

[Sanskar-khandelwal]

Thank you, This helps

[siddharth-chauhan-it]

It worked! (Ethers 6)