bug: failure to switch chains using WalletConnect in Wagmi 2

[firnprotocol]

Is there an existing issue for this?

• I have searched the existing issues

Package Version

rc (for wagmi 2)

Current Behavior

calling switchChain or switchChainAsync with WalletConnect throws:

SwitchChainError: An error occurred when attempting to switch chain.

Details: Cannot set properties of undefined (setting 'defaultChain')
Version: viem@2.0.0-rc.0
    at Object.switchChain (walletConnect.js:184:1)
    at async switchChain (switchChain.js:14:1)

Expected Behavior

should work.

Steps To Reproduce

connect using WalletConnect; then switch chain.

Link to Minimal Reproducible Example (StackBlitz, CodeSandbox, GitHub repo etc.)

https://stackblitz.com/edit/vitejs-vite-ty17d7

Anything else?

No response

[cheshirrrcat]

I have the same issue with 1.4.12 version

[chybisov]

I got this error from your example 👀

An error occurred when attempting to switch chain. Details: {"code":-32602,"message":"May not specify default MetaMask chain."} Version: viem@2.0.0-rc.2

I got Details: Cannot set properties of undefined (setting 'defaultChain') in my code but can't reproduce it now 😅

[chybisov]

Something is really off with this chain switching using WalletConnect. I have another issue #3350 😄

[firnprotocol]

yes, you're right! i also get a DIFFERENT error in the sandbox: "An error occurred when attempting to switch chain. Details: Missing or invalid. request() method: wallet_switchEthereumChain Version: viem@2.0.0-rc.2"

[glitch-txs]

@firnprotocol which wallet?

[glitch-txs]

hi, this is a WalletConnect issue, I've open an issue here feel free to close here/track there. Thanks!

[github-actions]

This issue has been locked since it has been closed for more than 14 days.

If you found a concrete bug or regression related to it, please open a new bug report with a reproduction against the latest wagmi version. If you have any other comments you can create a new discussion.