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sorry for a newbie question. I have a file from my study with the following code:

const { expect, assert } = require("chai");
const { ethers } = require("hardhat");
const { impersonateFundErc20 } = require("../utils/utilities");

const {
  abi,
} = require("../artifacts/contracts/interfaces/IERC20.sol/IERC20.json");

const provider = waffle.provider;

Everything worked first, but after installing new Hardhat I saw a message about migrating from Waffle to Hardhat Chai Matchers. I've done everything from hardhat documentation. But without Waffle I'm receiving an error:

ReferenceError: waffle is not defined

If I install waffle back hardhat tells that there is a conflict. Is there any way to use this Chai Matchers or I need to install everything as it was 2 months ago with an older Hardhat and Waffles? Thanks and sorry again)

1

2 Answers 2

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Try to change your line

const { ethers } = require("hardhat");

to

const { ethers, waffle } = require("hardhat");

and try again

Link to doc

0

instead of waffle.provider; try ethers.provider;

then run the test. it worked for me.

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