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Author Topic: Transaction not received, Mac app crashing - [SOLVED]  (Read 939 times)
bonchon
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June 10, 2011, 02:27:15 AM
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I have a reasonably large transaction sent to me from Bitcoin Market which hasn't yet arrived. Dustin Dollar suggested that I check the block count, and I had 128568 blocks - not enough, it seems.

Now, my Mac client is crashing every time I try to run it, giving me an error that reads in part "EXCEPTION: 11DbException". This error happens several times in a row, then the app crashes. I've tried restarting, but that didn't make a difference.

I backed up my wallet.dat file this morning, but is that enough? I have a PC that I've just installed Bitcoin on.

Is there a way to set up the new version that I installed so it will receive the transaction?

I'm having a panic, because this is my first time dealing with this, and I stupidly spent a kind of large amount of USD$ buying bitcoins which I'm afraid I have lost.

Thank you for your help.
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casascius
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June 10, 2011, 02:37:51 AM
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You probably haven't lost them.  Shut down bitcoin completely (including making sure the app isn't running but dormant), Save your wallet.dat to a USB drive, delete all files OTHER than wallet.dat from the bitcoin data directory, and run it again.  The application does this to a lot of people.

Never delete wallet.dat, never overwrite a backup, always make a new backup of wallet.dat in a new folder anytime you suspect trouble, as well as after any large transaction, for safety.  Also do a backup after you spend any part of a large balance, because most of your coins get sent as "change" to yourself at an invisible address and you need a backup of that.

Companies claiming they got hacked and lost your coins sounds like fraud so perfect it could be called fashionable.  I never believe them.  If I ever experience the misfortune of a real intrusion, I declare I have been honest about the way I have managed the keys in Casascius Coins.  I maintain no ability to recover or reproduce the keys, not even under limitless duress or total intrusion.  Remember that trusting strangers with your coins without any recourse is, as a matter of principle, not a best practice.  Don't keep coins online. Use paper or hardware wallets instead.
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June 10, 2011, 03:09:16 AM
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Thank you. I'm going to try this on my PC, which didn't have any crashing issues.

I'll take the backup wallet.dat and put it on the other machine now.

You probably haven't lost them.  Shut down bitcoin completely (including making sure the app isn't running but dormant), Save your wallet.dat to a USB drive, delete all files OTHER than wallet.dat from the bitcoin data directory, and run it again.  The application does this to a lot of people.

Never delete wallet.dat, never overwrite a backup, always make a new backup of wallet.dat in a new folder anytime you suspect trouble, as well as after any large transaction, for safety.  Also do a backup after you spend any part of a large balance, because most of your coins get sent as "change" to yourself at an invisible address and you need a backup of that.
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June 10, 2011, 10:43:34 AM
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Thank you Casacius! My problem is now solved.

On a new machine (PC), I installed Bitcoin; moved the new wallet.dat out of the directory (renamed it and set it aside in a different directory); then placed a backup of my original wallet.dat into the appropriate \Application Data\Bitcoin\ directory.

It took a while for the block count to add up, so I went to bed and left it running. This morning, it was at 129797 blocks and my transaction history was safe, including the recent transaction that I was worried about, which now arrived.



You probably haven't lost them.  Shut down bitcoin completely (including making sure the app isn't running but dormant), Save your wallet.dat to a USB drive, delete all files OTHER than wallet.dat from the bitcoin data directory, and run it again.  The application does this to a lot of people.

Never delete wallet.dat, never overwrite a backup, always make a new backup of wallet.dat in a new folder anytime you suspect trouble, as well as after any large transaction, for safety.  Also do a backup after you spend any part of a large balance, because most of your coins get sent as "change" to yourself at an invisible address and you need a backup of that.
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