Bitcoin Forum

Forgive my noobiness. I'm using Bitcoin-Qt on a netbook that is left off most of the time, so whenever I make a transaction I have to wait for the blockchain to catch up. Now it's no longer downloading new blocks. So, when I scroll over the spinning icon in the lower right it says, "Downloaded 199935 of X blocks of transaction history." X keeps going up, but 199935 hasn't moved in days.

I already downloading the latest version of the client. The update was successful but the problem persists. I tried transferring a small amount to a new wallet, but it doesn't appear that that the transaction is collecting confirmations.

I thought I better ask before I complicate the problem any more. I found some similar threads on the forum, but the solutions were too technical for me to understand. Is there anyone with the patience to deal with my ignorance who can help?

What version of the client do you have? You may want to update to 0.7 if yours is lower.

0.7.0 changelog includes this:

* Attempts to fix "stuck blockchain download" problems

Found this one? https://bitcointalk.org/index.php?topic=115283.msg1253198#msg1253198

In the bitcoin data directory there are debug.log and db.log files that document all activity of your bitcoin, including the likely errors near the end that will help you get it sorted.

I tried updating the client to BitCoin-QT 7 but the problem persisted, but I was able to successfully transfer the coins to another client on another machine. So crisis averted. I'm chalking this one up to it being time to replace then netbook. The more technical solutions are a little over my head.

Thanks for both your help.

Hmm I was thinking of setting up a site to HTTPS download the chain for a small cost. Maybe there is merit for it now

This happens to me too. I can't get past block 134273, except this happens on the Linux version 0.7. I can't use the Windows version because for some reason it gives me an error during installation. I've read the guide that deepceleron posted, but I can't locate the directory that Bitcoin downloads the block chains to on Linux in order to retry the download.

I loaded up the debug log and this following message seems to appear a lot. Maybe you can see what's going on; I sure can't.

ERROR: FetchInputs() : 40023c46c5 mempool Tx prev not found e896ce5120
ERROR: CTxMemPool::accept() : FetchInputs failed 40023c46c5
stored orphan tx 40023c46c5 (mapsz 256)
askfor tx e0e9e6c689bd113f3c9f   0
sending getdata: tx e0e9e6c689bd113f3c9f
askfor tx e0e9e6c689bd113f3c9f   1349609897000000
ERROR: FetchInputs() : e0e9e6c689 mempool Tx prev not found 33527da751
ERROR: CTxMemPool::accept() : FetchInputs failed e0e9e6c689
stored orphan tx e0e9e6c689 (mapsz 257)
askfor tx 6878d70bc41f2ecf7859   0
sending getdata: tx 6878d70bc41f2ecf7859
ERROR: FetchInputs() : 6878d70bc4 mempool Tx prev not found 113d9cc4ee
ERROR: CTxMemPool::accept() : FetchInputs failed 6878d70bc4
stored orphan tx 6878d70bc4 (mapsz 258)
askfor tx 0404ed11c88cf18d40bd   0
sending getdata: tx 0404ed11c88cf18d40bd
askfor tx 0404ed11c88cf18d40bd   1349609899000000
ERROR: FetchInputs() : 0404ed11c8 mempool Tx prev not found 8e9473d369
ERROR: CTxMemPool::accept() : FetchInputs failed 0404ed11c8
stored orphan tx 0404ed11c8 (mapsz 259)
askfor tx 0540080ecf89eaef3c5a   0
sending getdata: tx 0540080ecf89eaef3c5a
askfor tx 0540080ecf89eaef3c5a   1349609905000000
ERROR: FetchInputs() : 0540080ecf mempool Tx prev not found 40023c46c5
ERROR: CTxMemPool::accept() : FetchInputs failed 0540080ecf
stored orphan tx 0540080ecf (mapsz 260)
askfor tx e3101824a8490695e925   0
sending getdata: tx e3101824a8490695e925
askfor tx e3101824a8490695e925   1349609907000000
askfor tx e4d089460f390351807d   0
sending getdata: tx e4d089460f390351807d
askfor tx e3101824a8490695e925   1349610027000000
askfor tx e4d089460f390351807d   1349609907000000
ERROR: FetchInputs() : e4d089460f mempool Tx prev not found 0404ed11c8
ERROR: CTxMemPool::accept() : FetchInputs failed e4d089460f
stored orphan tx e4d089460f (mapsz 261)
ERROR: FetchInputs() : e3101824a8 mempool Tx prev not found c30a460d0d
ERROR: CTxMemPool::accept() : FetchInputs failed e3101824a8
stored orphan tx e3101824a8 (mapsz 262)
Added 1 addresses from 92.229.254.135: 54 tried, 13525 new
askfor tx 465809fa7e9cb020469f   0
sending getdata: tx 465809fa7e9cb020469f
askfor tx 465809fa7e9cb020469f   1349609910000000
ERROR: FetchInputs() : 465809fa7e mempool Tx prev not found c474ddcfb1
ERROR: CTxMemPool::accept() : FetchInputs failed 465809fa7e
stored orphan tx 465809fa7e (mapsz 263)
askfor tx 580f2d81f018290528b7   0
sending getdata: tx 580f2d81f018290528b7
ERROR: FetchInputs() : 580f2d81f0 mempool Tx prev not found e3101824a8
ERROR: CTxMemPool::accept() : FetchInputs failed 580f2d81f0
stored orphan tx 580f2d81f0 (mapsz 264)
askfor tx b7932aecd6c97bc37762   0
sending getdata: tx b7932aecd6c97bc37762

the data directory on *nix is .bitcoin in your home directory. Files starting with a period are hidden. Open a console and cd ~\.bitcoin

"mempool Tx prev not found" errors are from live p2p transactions being received by your bitcoin client, but the blocks that fund those transactions have not been downloaded yet. This is normal from an out-of-sync Bitcoin. A bitcoin transaction has inputs which are the signatures of the coins that are being sent, and outputs, which are the addresses where the coins are being sent to. Where it says "FetchInputs failed", the "inputs" that it fails to fetch are the transactions in previous blocks that say that the sender owns the coins.

And how, exactly, are people supposed to send you coinage when their Bitcoin doesn't work?

http://www.scifiscoop.com/wp-content/uploads/2009/08/mysteries_of_the_universe.jpg

...didn't really think that through did I...no more hopping on the forum while drinking haha

You can try the rescan launcher available in my "BTC/LTC Newbie Tools for Windows" package: https://bitcointalk.org/index.php?topic=113707.0

This usually helps to fix clients stuck while downloading the blockchain or clients missing info/transactions from the blockchain.

Well, first thing comes to mind - cancel, reinstall the wallet app (I know it sucks to wait again). If it doesn't work try different wallet bitcoinmagazine[DOT]net[SLASH]bitcoin-wallet-options

Is your harddrive full?