Chainlink Operator.sol not compiling - TypeError: The suffixes .offset and .slot can only be used on storage variables

Question

I'm trying to compile a contract that imports Chainlink's Operator.sol, but when I do I get the below error.

Contract:

// SPDX-License-Identifier: MIT

pragma solidity ^0.7.0;

import "@chainlink/contracts/src/v0.7/Operator.sol";

Error:

@chainlink/contracts/src/v0.7/Operator.sol:540:37: TypeError: The suffixes .offset and .slot can only be used on storage variables.
      firstDataWord := calldataload(data.offset)
                                    ^---------^

Relevant part of Operator.sol:

  modifier validateMultiWordResponseId(bytes32 requestId, bytes calldata data) {
    require(data.length >= 32, "Response must be > 32 bytes");
    bytes32 firstDataWord;
    assembly {
      firstDataWord := calldataload(data.offset)
    }
    require(requestId == firstDataWord, "First word must be requestId");
    _;
  }

Thanks

Answer 1

The contract compiled with 0.7.6.