Pragma solidity error

[wilonweb]

Hello
On the Raffle.sol i got this line of code
pragma solidity ^0.8.7;

and an erro who say :

Source file requires different compiler version (current compiler is 0.6.6+commit.6c089d02.Emscripten.clang - note that nightly builds are considered to be strictly less than the released version

Do you know how can i solve the problem ?

[krakxn]

@NinjaTurtles-cloud

Make sure you include the 0.8.7 version in your hardhat.config file (inside compilers field)

[wilonweb]

Hi
On my hardhat.config i got only :

module.exports = {
    solidity: "0.8.9",
}

So i change my pragma on my Raffle.sol file with :
Source file requires different compiler version (current compiler is 0.6.6+commit.6c089d02.Emscripten.clang - note that nightly builds are considered to be strictly less than the released version
So i change the pragma in my Raffle.sol file with
pragma solidity ^0.8.9;
May be i have to advance in the tuto to solve the error ?

thanks

[krakxn]

@NinjaTurtles-cloud

Yeah, that is the problem.

Use this instead:

1. hardhat.config

solidity: {
        compilers: [
            {
                version: "0.8.7",
            },
            {
                version: "0.4.24",
            },
        ],
    },

Another change is the version in your contract:

2. Raffle.sol

pragma solidity ^0.8.7;

3. VRFCoordinatorV2Mock.sol inside contracts>test

pragma solidity ^0.8.0;

The changes above should fix the problem.

[RoboCrypter]

@NinjaTurtles-cloud : After writing solidity version in your contract, Just make sure that solidity compiler version you wrote is in your hardhat.config.js file. If it isn't there be sure to add it.

And by doing that you will stay away from this error!

[SiegfriedBz]

@NinjaTurtles-cloud
in your hardhat.config.js, add the needed compiler versions like the following

module.exports = { solidity: { compilers: [ { version: "0.8.0" }, { version: "0.8.4" }, ], } }