Error: Invalid option tokenMint

[tadeoaguilar]

I have an error when using project-serum/anchor library to fetch the status of a Candy Machine.
It throws:

Unhandled Runtime Error
Error: Invalid option tokenMint

My code is the following:

` const provider = getProvider();

    // Get metadata about your deployed candy machine program
    const idl = await Program.fetchIdl(candyMachineProgram, provider);
   
    // Create a program that you can call
    const program = new Program(idl, candyMachineProgram, provider);
   
    // Fetch the metadata from your candy machine
   **//This is the line of code that is failing**
    const candyMachine = await program.account.candyMachine.fetch(
        "A8N1TGFxC3eesH4vtQuLiCMHdBDZNuVJM925q5xhN71z"
    );

`

Please, any help with this issue will be highly appreciated.

[JeffKGabriel]

Yes for me as well- Error: Invalid option tokenMint

i am using candy-machine-ui , npm i, create .env, and insert my REACT_APP_CANDY_MACHINE_ID=***

I wonder if it has todo with candy-machine-ui using "@project-serum/anchor": "^0.17.0", dependency - im not sure

in candy-machine-ui it looks like it is happening at getCandyMachineState , Home.tsx line: 99 ->
which calls candy-machine.ts and im seeing issues resolving
const state: any = await program.account.candyMachine.fetch(candyMachineId);

program.account.candyMachine looks like it has the following attributes from logs

_coder:
_idlAccount:
_programId:
_provider:
_size:
coder: (...)
programId:(...)
provider:(...)
size:(...)

but getProgramState() doesnt seem to get past this line await program.account.candyMachine.fetch(

[tadeoaguilar]

I tried changing the anchor version to other stable releases but no luck at all. I found that Metaplex has recently updated the documentation. There are new ways to connect with the Cany Machine, I will try and update here.
https://docs.metaplex.com/programs/candy-machine/how-to-guides/my-first-candy-machine-part2

[tadeoaguilar]

Haha, some progress with the new Metaplex guide. I have a different error now.

:82 Uncaught (in promise) TypeError: (0 , types_BigNumber_mjs__WEBPACK_IMPORTED_MODULE_3_.toBigNumber)(...).toBuffer is not a function
at toCandyMachine (CandyMachine.mjs:82:54)
at Object.handle (findCandyMachineByAddress.mjs:59:40)
at async Disposable.run (Disposable.mjs:22:1)
toCandyMachine @ CandyMachine.m

[tanlethanh]

For those who still find the answer, the problem is using the incorrect program id (candy machine v1, v2, or v3) for the account. You can search at https://explorer.solana.com/ by your CANDY_MACHINE_ID and find assigned program id, the actual program id that suits your candy machine version. Then set the id to candyMachineProgram in above snippet