[BUG] Error: Expected a valid key to convert, with length 1, 2, 4, 8, 32, 33

[ltfschoen]

Describe the bug
If I connect with Polkadot.js Extension and one of the accounts is an EVM account (i.e. 0x____) instead of a Substrate SS58 address then it crashes with browse console error Error: Expected a valid key to convert, with length 1, 2, 4, 8, 32, 33 unless I know to hide that specific address within Polkadot.js Extension

To Reproduce
Steps to reproduce the behavior:

1. Import an EVM address (e.g. for Moonbeam) into Polkadot.js Extension and don't hide it
2. Click Connect Wallet
3. Click Polkadot.js
4. See error

Expected behavior
It should try/catch and ignore that EVM wallet instead of crashing

Screenshots
If applicable, add screenshots to help explain your problem.

Desktop (please complete the following information):

• OS: [e.g. iOS] macOS 14.1.1
• Browser [e.g. chrome, safari] Brave
• Version [e.g. 22] latest version

Note
Once you take on this PR paste a comment with your hand -> ✋ so that people know that someone is working on this issue.

[ltfschoen]

Oh, i just realised that i'd created this same issue before here #69

Is this an appropriate temporary solution?

[poppyseedDev]

@vikiival

[poppyseedDev]

@ltfschoen could you provide more info on can you import an EVM address (e.g. for Moonbeam) into Polkadot.js Extension?

[ltfschoen]

@ltfschoen could you provide more info on can you import an EVM address (e.g. for Moonbeam) into Polkadot.js Extension?

yes, it is possible to import an EVM address that you use across multiple EVM chain accounts, such as Moonbeam, Ethereum, etc.

[ltfschoen]

Related issues:

• Uncaught Error: Expected a valid key to convert, with length 1, 2, 4, 8, 32, 33  polkadot-js/extension#1250 (comment)
• Uncaught Error: Expected a valid key to convert, with length 1, 2, 4, 8, 32, 33 kodadot/nft-gallery#9412
• Error decoding address when try to connect at https://app.zeitgeist.pm/ using Polkadot.js Extension using latest runtime zeitgeistpm/ui#2185 (comment)
• https://grillapp.net/@luke/polkadot-d-app-errors-when-handling-accounts-supplied-by-the-47114
• Uncaught Error: Expected a valid key to convert, with length 1, 2, 4, 8, 32, 33 Joystream/pioneer#4782

Example solutions:

• https://github.com/dappforce/polkaverse/pull/210/files#diff-ca62a13994aae3c545ad2d796d272f3ee8c0ab33b83bb3d5c023dc553b55f984R14
• Filter and handle eth account connections in the wallet zeitgeistpm/ui#2236

[poppyseedDev]

@ltfschoen could you provide more info on can you import an EVM address (e.g. for Moonbeam) into Polkadot.js Extension?

yes, it is possible to import an EVM address that you use across multiple EVM chain accounts, such as Moonbeam, Ethereum, etc.

Hei @ltfschoen could you send a video of how to import this account into polkadot js.

[ltfschoen]

@ltfschoen could you provide more info on can you import an EVM address (e.g. for Moonbeam) into Polkadot.js Extension?

yes, it is possible to import an EVM address that you use across multiple EVM chain accounts, such as Moonbeam, Ethereum, etc.

Hei @ltfschoen could you send a video of how to import this account into polkadot js.

it shows how to do it at 2 mins into this video (I'm not the presenter) https://youtu.be/9ohp8k4Hz8c?feature=shared

the videos are published in the wiki https://guide.kusama.network/docs/learn-guides-accounts/

[vikiival]

So @poppyseedDev I managed to break the app and replicate @ltfschoen's issue

Reproduce:

1. Install Talisman
2. Create one polkadot and one evm address
3. Login to Lastic - select all wallets
4. disconnect
5. connect again

and 🎉

[poppyseedDev]

Nice thanks @vikiival! Okay, let's then fix this.