# \[Archive\] Getting 404 with sample code

**URL:** <https://builder.metamask.io/t/archive-getting-404-with-sample-code/1799>\
**Category:** Embedded Wallets (Web3Auth)\
**Created:** [September 11, 2023, 4:35am UTC](https://builder.metamask.io/t/archive-getting-404-with-sample-code/1799 "2023-09-11T04:35:15Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![thangnd](https://avatars.discourse-cdn.com/v4/letter/t/96bed5/32.png) [@thangnd](https://builder.metamask.io/u/thangnd)\
**Post date:** [September 11, 2023, 4:35am UTC](https://builder.metamask.io/t/archive-getting-404-with-sample-code/1799/1 "2023-09-11T04:35:15Z")

</div>

> **🏛 Archived Content from Web3Auth Community**
> 
> This topic was originally posted by **thangnd** on 9/11/2023.  
> This content has been migrated from our previous community forum to preserve valuable discussions.

* * *

I cloned sample code from here:

```
  <a href="https://github.com/Web3Auth/web3auth-core-kit-examples/tree/main/mpc-core-kit/mpc-core-kit-react-popup-example/" target="_blank" rel="noopener nofollow ugc">github.com</a>

```

### 

[//github.com/Web3Auth/web3auth-core-kit-examples/tree/main/mpc-core-kit/mpc-core-kit-react-popup-example/](https://github.com/Web3Auth/web3auth-core-kit-examples/tree/main/mpc-core-kit/mpc-core-kit-react-popup-example/)

But it did not work. I got 404 error when calling to jrpc.  
Please check this link jrpc below and help me.

POST ://sapphire-dev-2-5.authnetwork.dev/sss/jrpc/sss/jrpc 404  
POST ://sapphire-dev-2-1.authnetwork.dev/sss/jrpc/sss/jrpc 404  
POST ://sapphire-dev-2-3.authnetwork.dev/sss/jrpc/sss/jrpc 404  
POST ://sapphire-dev-2-4.authnetwork.dev/sss/jrpc/sss/jrpc 404  
POST ://sapphire-dev-2-2.authnetwork.dev/sss/jrpc/sss/jrpc 404

mpcCoreKit.ts:191 login error Error: Unable to resolve enough promises.  
at some.ts:72:1  
at

---

<div class="post-metadata">

**Author:** ![vjgee](https://avatars.discourse-cdn.com/v4/letter/v/b5e925/32.png) [@vjgee](https://builder.metamask.io/u/vjgee)\
**Post date:** [September 11, 2023, 4:40am UTC](https://builder.metamask.io/t/archive-getting-404-with-sample-code/1799/2 "2023-09-11T04:40:14Z")

</div>

@thangnd Welcome Aboard!

Please upgrade to the latest SDK and update the libraries for react to the latest version.