Lesson 4： can't find AggregatorV3Interface.sol

[Bellatlich]

In docs.chain.link i find the example data feed contract, but in chainlink github i can't find the ABI contract. i find its path written in contract didnt change but in that path i cant find it(@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol)
so what can i import?

[Bellatlich]

i find it in v0.7 and change my solidity version, then i successfully run the contract, but i still want to find AggregatorV3Interface.sol
where is it?

[SimSimButDifferent]

try import with this @chainlink/blob/develop/contracts/src/v0.7/interfaces/AggregatorV3Interface.sol

the contract is here. Hope this helps.
https://github.com/smartcontractkit/chainlink/blob/develop/contracts/src/v0.7/interfaces/AggregatorV3Interface.sol

[jujuvideogirlai]

import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol"; worked for me with 0.8.8 version;

I followed Patrick's example in here: https://github.com/PatrickAlphaC/fund-me-fcc/blob/main/PriceConverter.sol

If you want to check the inner code in AggregatorV3Interface.sol, you can go directly to the Chainlink repo:
https://github.com/smartcontractkit/chainlink/blob/master/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol

Hope this helps! 🦾

[manikantallm]

As mentioned by @jujuvideogirlai i have manually created a file at node_modules/@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol.
and it worked

[vincenth1]

Hey guys the updated link now is the following:

import "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol";

as mentioned by @jujuvideogirlai import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol"; is not working for me, neither for version 0.8.8 nor 0.8.7

This works with solidity version 0.8.7 for me.

Link to the contract: https://github.com/smartcontractkit/chainlink/tree/develop/contracts/src/v0.8/shared/interfaces

[Nlferu]

@Bellatlich

The whole problem is with your chainlink package version, just use same as it is in course repo (check yarn.lock file). Then you can use same path as it is in course. Otherwise just check your node_modules folder and find where exactly Aggregator is located, if there is not Aggregator found at all just go back to downgrading @chainlink/contracts version :)

[lionel126]

I run "yarn add @chainlink/[email protected]" and AggregatorV3Interface.sol came up.
yes just add the @v0.8 tag, so what's the difference?
I checked the log, you know what, it's @chainlink/[email protected] when I run "yarn add @chainlink/contracts"! but why there are same directory named src/v0.8? that's the reason I didn't think to specific the version until now. is the directory name just for solidity v0.8?

[sirinibin]

@Bellatlich Its here https://github.com/smartcontractkit/chainlink/blob/develop/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol

[TatyOko28]

The correct import path for AggregatorV3Interface.sol in Chainlink v0.8+ is:

import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";

If you can't find it in GitHub, ensure you have installed the correct Chainlink dependency:

npm install @chainlink/contracts

You can also check older versions on GitHub: https://github.com/smartcontractkit/chainlink.