Re: Signing Transaction Failed ( 0,5 btc reward for fixing answer)

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Is your wallet encrypted? If so, try this:

Quote

launch your bitcoin client as usual and wait for it to load the blockchain and start up
click on 'help' in the menu bar (top right)
click on 'debug window'
select the 'console' tab
type: walletpassphrase 600
type: dumpprivkey [your public key here]
this will return the private key, you can copy it now; ensure you clear your clipboard/history afterwards
type: walletlock

Typing "walletpassphrase 600" doesn't work if your passphrase isn't "600". Try the above, but replace the red text with your actual passphrase.

If your wallet's not encrypted, you can skip the "walletpassphrase" and "walletlock" steps.

If that still doesn't work, I'd suggest a rescan of the blockchain (close bitcoin-qt and run "bitcoin-qt --rescan" on the command line, it'll take a while to start). Try rebooting your computer too, that can solve a lot of problems.

I cannot use walletpassphrase yourpasshere without the 600 i get an error then :

walletpassphrase
Stores the wallet decryption key in memory for seconds. (code -1)

Sorry, I forgot about the timeout. The command you want is "walletpassphrase 600". Bitcoin-qt should show a lock icon in the lower right corner of the main window, it will show as an open lock once when wallet is successfully locked. It will automatically lock again after 10 minutes or when you use the "walletlock" command, whichever is first.

Iv done all this before, i can dumpprivkey and i get the code but i cannot import that into another wallet or blockchain wallet. I get an error.