> For the complete documentation index, see [llms.txt](/ko/llms.txt).

This section provides help on some potential issues you may run into and tips on how to resolve them.

## Errors

### Error HH8: There's one or more errors in your config file

```shell
% npx hardhat compile
Error HH8: There's one or more errors in your config file:

* Invalid account: #0 for network: rskMainnet - Expected string, received undefined
* Invalid account: #0 for network: rskTestnet - Expected string, received undefined

To learn more about Hardhat's configuration, please go to https://hardhat.org/config/

For more info go to https://hardhat.org/HH8 or run Hardhat with --show-stack-traces
```

> - FIX 1: Ensure the values in the environment variables matches with the hardhat network configuration `hardhat.config.js` file. For bash, run `source .env` in the root directory for dotenv to enable the environment variables.

### Error: Nothing to Compile

```shell
% npx hardhat compile
Nothing to compile
```

> - FIX 2: Delete artifacts folder and run the `npx hardhat compile` command to generate new artifacts.

### Error: "GET /MyToken.json" Error (404): "Not found"

- Check that contracts were compiled successfully, and artifacts folder was generated.
- Check that all the steps in [interacting with frontend](/developers/smart-contracts/hardhat/interact-with-frontend/) were followed sequentially.

### Error: HH601: Script scripts/deploy.js doesn't exist.

- Ensure that you're running the `npx hardhat run --network hardhat scripts/deploy.js` command from the root directory.