> For the complete documentation index, see [llms.txt](https://support.keyst.one/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://support.keyst.one/traditional-chinese/di-san-fang-qian-bao/polkadot-qian-bao/geng-xin-huo-zhong-zhi-metadata.md).

# 更新或重置 Metadata

如果您在與 Polkadot 網絡交互時遇到錯誤消息 "Bad Input data. Failed to decode extensions. Please try updating the Metadata for Kusama/Polkadot network"，可能是因為 Polkadot{.js} 錢包運行時未更新 Polkadot 網絡的 Metadata。在本教程中，我們將為您介紹如何在 Keystone 上解決 Metadata 的問題。

## 更新 Keystone 上的 Metadata <a href="#fn2eesqgbudu" id="fn2eesqgbudu"></a>

要使用 Keystone 更新 Polkadot 網絡的 Metadata ，請按照以下簡單步驟操作：

1. 點擊提供的鏈接，訪問 Keystone 的 [Metadata 門戶](https://metadata.parity.io/#/polkadot)。
2. 使用 Keystone 設備，點擊 \[-] 圖標以激活相機。
3. 掃描 Metadata 門戶上的 QR 碼，並點擊 \[Approve]。

<figure><img src="/files/YaMuXO2x7woVjfyA62vy" alt=""><figcaption></figcaption></figure>

{% hint style="info" %}
注意：

如果您需要更新 **Kusama 網絡**的 Metadata ，請在 Metadata 門戶上點擊 \[Kusama]，然後按照相同的步驟操作。
{% endhint %}

<figure><img src="/files/C2ukUmCIDvyGOUKcpZSE" alt=""><figcaption></figcaption></figure>

## 重置 Metadata <a href="#sf51fp44uneg" id="sf51fp44uneg"></a>

如果您需要重置 Polkadot 或 Kusama 網絡的 Metadata ，請按照以下步驟操作：

1. 確保您已經通過将 DOT 或 KSM 資產添加到主页。
2. 點擊 \[DOT] 或 \[KSM]，再點擊右上角的三個點。
3. 點擊 \[Reset Data]，閱讀警告，並點擊 \[Confirm]。

<figure><img src="/files/YIMMeGIZwflkfhXFXWQZ" alt=""><figcaption></figcaption></figure>

通過按照這些步驟操作，您可以輕鬆更新 Keystone 上的 Polkadot 網絡 Metadata ，確保您的擴展與最新信息保持一致，並在使用 Polkadot 或 Kusama 網絡時保持順暢的功能。


---

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