<p>下記のやり方で、自分でmainnetで発行したERC20トークンをetherscanで認証しようとしたら、<br style="display:none">
<span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__40509261dd327" src="https://embed.zenn.studio/card#zenn-embedded__40509261dd327" data-content="https%3A%2F%2Fzenn.dev%2Fryo_takahashi%2Farticles%2F77f4eeb3f9f52b" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://zenn.dev/ryo_takahashi/articles/77f4eeb3f9f52b" style="display:none" target="_blank">https://zenn.dev/ryo_takahashi/articles/77f4eeb3f9f52b</a></p>
<p>このエラーが出ました。<br>
[Error: ENOENT: no such file or directory, open '/Users/nook/Solidity/ChiqBox/artifacts/build-info/7f464e03ce2c644aa3a9f034f5820ba3.json']<br>
<img src="https://storage.googleapis.com/zenn-user-upload/54c796026fc5-20220225.png" alt loading="lazy" class="md-img"></p>
<p>でググったら、</p>
<p><code>npx hardhat clean</code></p>
<p>で直りました。</p>
<p><span class="embed-block zenn-embedded zenn-embedded-card"><iframe id="zenn-embedded__c4aafcb3c5f09" src="https://embed.zenn.studio/card#zenn-embedded__c4aafcb3c5f09" data-content="https%3A%2F%2Fgithub.com%2FNomicFoundation%2Fhardhat%2Fissues%2F1117" frameborder="0" scrolling="no" loading="lazy"></iframe></span><a href="https://github.com/NomicFoundation/hardhat/issues/1117" style="display:none" target="_blank" rel="nofollow noopener noreferrer">https://github.com/NomicFoundation/hardhat/issues/1117</a></p>


hardhatでERC20トークンをetherscan認証しようとしたら、エラー。[Error: ENOENT: no such  ...

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