Advanced Foundry - Cross-Chain Rebase Token - Error: Wrong argument count for modifier invocation: 5 arguments given but expected 4.

[mustby]

I'm on video 15 of the "Cross-Chain Rebase Token" section of Advanced Foundry. When I compile with "forge build" after following in the video, I'm getting this error:

MacBook-Pro:ccip-rebase-token$ forge build
[⠊] Compiling...
[⠰] Compiling 19 files with Solc 0.8.26
[⠔] Solc 0.8.26 finished in 1.24s
Error: Compiler run failed:
Error (2973): Wrong argument count for modifier invocation: 5 arguments given but expected 4.
  --> src/RebaseTokenPool.sol:16:7:
   |
16 |     ) TokenPool(_token, 18, _allowlist, _rnmProxy, _router) {}
   |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

Here is my current "RebaseTokenPool.sol" file:

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.24;

import {TokenPool} from "lib/ccip/contracts/src/v0.8/ccip/pools/TokenPool.sol";
import {Pool} from "lib/ccip/contracts/src/v0.8/ccip/libraries/Pool.sol";
import {IERC20} from "lib/ccip/contracts/src/v0.8/vendor/openzeppelin-solidity/v4.8.3/contracts/token/ERC20/IERC20.sol";
import {IRebaseToken} from "./interfaces/IRebaseToken.sol";

contract RebaseTokenPool is TokenPool {
    constructor(
        IERC20 _token,
        address[] memory _allowlist,
        address _rnmProxy,
        address _router
    ) TokenPool(_token, 18, _allowlist, _rnmProxy, _router) {}

    /// @notice burns the tokens on the source chain
    function lockOrBurn(
        Pool.LockOrBurnInV1 calldata lockOrBurnIn
    )
        external
        virtual
        override
        returns (Pool.LockOrBurnOutV1 memory lockOrBurnOut)
    {
        _validateLockOrBurn(lockOrBurnIn);
        uint256 userInterestRate = IRebaseToken(address(i_token))
            .getUserInterestRate(lockOrBurnIn.originalSender);
        IRebaseToken(address(i_token)).burn(address(this), lockOrBurnIn.amount);
        lockOrBurnOut = Pool.LockOrBurnOutV1({
            destTokenAddress: getRemoteToken(lockOrBurnIn.remoteChainSelector),
            destPoolData: abi.encode(userInterestRate)
        });
    }

    /// @notice Mints the tokens on the source chain
    function releaseOrMint(
        Pool.ReleaseOrMintInV1 calldata releaseOrMintIn
    ) external returns (Pool.ReleaseOrMintOutV1 memory) {
        _validateReleaseOrMint(releaseOrMintIn);
        address receiver = releaseOrMintIn.receiver;
        uint256 userInterestRate = abi.decode(
            releaseOrMintIn.sourcePoolData,
            (uint256)
        );
        IRebaseToken(address(i_token)).mint(
            receiver,
            releaseOrMintIn.amount,
            userInterestRate
        );
        return
            Pool.ReleaseOrMintOutV1({
                destinationAmount: releaseOrMintIn.amount
            });
    }
}

When I remove the "18" from the constructor, everything compiles fine. I'm confused on where to go from here. Note: I believe I installed the correct CCIP version "forge install smartcontractkit/[email protected] --no-commit" so that shouldn't be the issue.

[EngrPips]

Hello @mustby, Please show the TokenPool contract