Originally posted by **SquilliamX** October 25, 2023
Hi everyone, I was having difficulty with lesson 7 (github discussion: https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/6237 ) and i decided to clone the lesson 7 project to reverse engineer it but even the cloned lesson 7 throws an error! I cloned the repo, ran "yarn", and updated the .env to my information. I then ran "yarn hardhat deploy --tags mocks" and it threw the error as seen below. I also then ran "source .env" and tried to run "yarn hardhat deploy --tags mocks" but it still didn't work.
So all in all, it's the lesson 7 cloned repo with an updated .env and it still does not deploy the mocks.
This is the error:
```
$ yarn hardhat deploy --tags mocks
yarn run v1.22.19
warning package.json: No license field
$ /home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/.bin/hardhat deploy --tags mocks
Nothing to compile
failed to get chainId, falling back on net_version...
An unexpected error occurred:
Error: error:0308010C:digital envelope routines::unsupported
at new Hash (node:internal/crypto/hash:71:19)
at Object.createHash (node:crypto:133:10)
at hash160 (/home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/ethereum-cryptography/vendor/hdkey-without-crypto.js:249:21)
at HDKey.set (/home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/ethereum-cryptography/vendor/hdkey-without-crypto.js:50:24)
at Function.HDKey.fromMasterSeed (/home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/ethereum-cryptography/vendor/hdkey-without-crypto.js:194:20)
at deriveKeyFromMnemonicAndPath (/home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/util/keys-derivation.ts:21:27)
at derivePrivateKeys (/home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/providers/util.ts:29:52)
at normalizeHardhatNetworkAccountsConfig (/home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/providers/util.ts:56:10)
at createProvider (/home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/providers/construction.ts:78:59)
at /home/smartchain/code/foundry-f23/fundme2/hardhat-fund-me-fcc/node_modules/hardhat/src/internal/core/runtime-environment.ts:80:28 {
opensslErrorStack: [ 'error:03000086:digital envelope routines::initialization error' ],
library: 'digital envelope routines',
reason: 'unsupported',
code: 'ERR_OSSL_EVP_UNSUPPORTED'
}
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.
```
Discussed in https://github.com/smartcontractkit/full-blockchain-solidity-course-js/discussions/6249