Any errors you may get, what they mean, and how to solve them.

My "Add Ledger" button doesn't work on polkadot.js
1. Nothing happens when I click the "Add Ledger" button Can you see your Ledger in your list of accounts? If yes, then everything is fine. Not...
Wed, 24 Nov, 2021 at 8:51 PM
My address starts with “5” or a capital letter, not “1” as it should.
Each Substrate chain has its own address format. For example, an address starting with “5” is a generic Substrate address and an address starting with a cap...
Wed, 13 Apr, 2022 at 10:28 PM
My Ledger account is in my address book and I can't send funds out!!
Transactions can only be made from the accounts page. All contacts in the address book are read-only and no transactions can be made from them.  You wil...
Wed, 24 Nov, 2021 at 8:52 PM
My mnemonic phrase is invalid!
If you're trying to restore your account on Polkadot-JS UI or the Polkadot extension and you're getting an error like this: Polkadot-JS UI ...
Tue, 4 Jan, 2022 at 2:08 PM
My Password is not working!
Whenever you issue an extrinsic with the Polkadot-JS UI or the Polkadot extension for e.g. the purpose of staking or transferring funds out of your account,...
Wed, 24 Nov, 2021 at 8:52 PM