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The easiest way to do this by importing the address you generated on the offline Bitcoin Core client into an online fully synced Bitcoin-Core. The command is: bitcoin-cli importaddress <address>. The benefit of importing this address into the synced Bitcoin-Core machine is that you can use it as a watch-only address which will allow you to see all the ...


1

That error means you did not provide a high enough transaction fee on your transaction.


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