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Metamask Chain ID Issue on Hardhat
I recently ran into an issue when setting up my Metamask wallet on Hardhat, a popular Ethereum development environment. Specifically, I was trying to use chainID: 1337 instead of the intended 31337.
The Issue:
My hardhat.config.js file already included the following configuration:
module.exports = {
solidity: "0.8.17",
networks: {
localhost: {
host: 'localhost',
port: 8545,
chainID: 1337
}
},
// ... other configurations ...
};
The solution:
It turns out that the problem is caused by hardcoding the chainID value in the Hardhat configuration. Specifically, I had included 31337 instead of 1337.
To fix this, I simply edited my hardhat.config.js file to revert to its original contents:
module.exports = {
solidity: "0.8.17",
networks: {
localhost: {
host: 'localhost',
port: 8545,
chainID: 1337
}
},
// ... other configurations ...
};
What happened?
In my attempt to use 31337 as the chainID, I inadvertently used a hardcoded value instead of using the configuration imported from Metamask. This resulted in an error when Hardhat tried to resolve the chainID value.
Prevention and workarounds:
To avoid similar issues in the future, it is essential to:
- Carefully review your hardhat.config.js file and ensure all configurations are accurate.
- Verify that you are using the intended chainID value for Metamask.
- Use a library or configuration tool that can handle the Metamask
chainIDvalue.
By taking these precautions, you should be able to configure your Hardhat environment with the correct chainID value and avoid similar issues in the future.
