@chainlink/contracts/src/v0.6/tests/MockV3Aggregator.sol showing file not found

[nikhil-b-more]

1. @chainlink/contracts/src/v0.6/tests/MockV3Aggregator.sol
   import link showing file not found,

2. @chainlink/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:38: TypeError: Interfaces cannot inherit.
   interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
   ^-----------------^

@chainlink/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:59: TypeError: Interfaces cannot inherit.
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
showing this error on compile

lesson 7,
tutorial timing : 10.42,

[nikhil-b-more]

I used // import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol"; // this link for compile now its compiling files but still curious about above question why it dosent compile?

[solyakin]

this works for me too

[PatrickAlphaC]

Your hardhat.config.js probably has 0.6.0 instead of 0.6.6 for solidity versions.

[mattjaf]

I believe the proper imports are:

import "@chainlink/contracts/src/v0.6/tests/MockV3Aggregator.sol"; for the mock

import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol"; and for the aggregotor

---

You gotta make sure you have chainlink added to package.JSON
yarn add @chainlink/contracts

also, make sure you have a semicolon at the end of those statements

BTW, your # 2 says AggregatorV2V3Interface, which doesn't look right with the v2v3

[nikhil-b-more]

@chainlink/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:38: TypeError: Interfaces cannot inherit.
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
^-----------------^

@chainlink/contracts/src/v0.6/interfaces/AggregatorV2V3Interface.sol:7:59: TypeError: Interfaces cannot inherit.
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface
^-------------------^

I mentioned import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
cant understand what exact its telling.

[mattjaf]

it looks like a typo

Also, make sure you have the proper compiler versions in your config file as well as in your contract:

solidity: {
        compilers: [{ version: "0.8.8" }, {version: "0.8.0"}, {version: "0.7.0"}, {version: "0.6.6"}, { version: "0.6.0" }],
    },
    

[PatrickAlphaC]

Does your code look the same as what we have in the github repo?

[changbobbyliu]

I had the same issue since I put 0.6.0 as the added compiler version, whereas in the video it's 0.6.6. Make sure your hardhat.config.js looks like this:

const config = {
  solidity: {
    compilers: [{ version: '0.8.8' }, { version: '0.6.6' }],
  },
  // ...rest of the configs
}

[alatiqueeagle]

Thank you!

[Vsatyam013]

@chainlink/contracts/src/v0.6/tests/MockV3Aggregator.sol showing file not found, Now chainlink only have v0.8 file, how can I get v0.6 file