I can't use adresses from Bitcoin Core on Electrum

[Nomads95]

I create wallet in Bitcoin Core. Later when i got some btc,  i thought to go to electrum, but when I create a wallet, and database is synchronized i get a information - http://screenshooter.net/102752170/lxawvyj what can i do to fix it?

[ranochigo]

To spend a Bitcoin, you need a private key. What you did was to add an address which would not work. Unless necessary, I would advice you to avoid transferring your private key. If you absolutely have to,

Code:

1. Go to HELP>debug window> console on Bitcoin Core.
2. Use: walletpassphrase [insert your password here] 600 if you have a password.
3. Use dumpprivkey [ insert address] to export the private key.
Don't include [ ].

Next, go to electrum, go to Wallet, private keys and click either
1. Import - This adds your entire address into the wallet and you have to keep a separate backup of the private keys.
2. Sweep- This sends the entire balance to the wallet's address and you only need to backup the seed that you gotten during the creation.

[shorena]

To add to ranochigo's advice: The imported key is not covered by the seed, so you need to make manual backups. Its probably best to import it as suggested and transfer everything to an electrum wallet that is covered by a seed. Unless you still have a full synced bitcoin core (unlikely) in which case its better to just send all coins from core to a new electrum wallet.

[Nomads95]

Problem solved, thank you very much.