hardhat-waffle needs to be imported on hardhat.config.js

[marciob]

At hardhat.config.js step of the web tutorial, it's missing the hardhat-waffler import:

require("@nomiclabs/hardhat-waffle");

Without that line, it will through an error:

TypeError: Cannot read property 'getContractFactory' of undefined

[tetuaoro]

Thank you find doc there for more info.