Thanks so much for all the help guys!

I did in fact access the funds last night and move them after a lot of work. The solution was downloading Pywallet and running a -dumpwallet command which enabled me to dump the keys into a Plaintext JSON WordPad document. I then imported that to my Blockchain.info wallet via their Import Wallet feature. Thankfully, I saved the wallet.dat file before I downloaded Bitcoin Core. Otherwise I'm not sure that would have been possible.

There are no transactions. It's like the wallet with funds in it never existed-- the address, private key, and coins are nowhere to be found. Although when I search the address on Blockchain, I see the transactions and funds. The private key extraction does not work (error is: Private key for address 13hZ8DCJ1jQgdgSDZx6DvnGpZbKii11KE9 is not known (code -4))

I'm stuck and pretty disappointed that upgrading to a new bitcoin wallet could cause me to potentially lose a significant amount of bitcoin. Any other suggestions?

I'm experiencing something similar following upgrading to Bitcoin Core (from Bitcoin QT-0.8.6). Have you figured out a solution to this problem yet?

Also, I uninstalled Bitcoin Core and am now running Bitcoin-QT 0.8.6 again. Does that change how I would go about extracting the private key?

Thanks Shorena. Yes, I do have a wallet.dat file from before I downloaded Bitcoin Core.

There's no error message, the funds just aren't showing up. The error message from Blockchain.info is a 524 error. Is the process you described extracting my private keys?

I recently upgraded my bitcoin desktop client from Bitcoin-QT 0.8.6 to Bitcoin Core on Windows. The bitcoin did not show up in the new wallet and I now can't  find my bitcoin and am not able to import my wallet.dat file on Blockchain.info. Is it possible that my wallet.dat file was corrupted? Any help is much appreciated and if I recover my bitcoin will send you some!

rHUfmWUNxx3dqTGj3ZxP9CUYSgdbLQsW4u

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I tried to send .88 btc from my bitcoin client (version 0.3.21-beta) on my mac last Sunday. The transaction has not gone through, and the status has remained at "0/unconfirmed". My client has 1 connection. I have searched the web to try to come up with ways to solve this with no luck thus far. Any help would be greatly appreciated!

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