'"NoneType" object is not subscriptable' error from bitcoind returning blank transaction

[robby-d]

It seems that bitcoind's getrawtransaction sometimes returns an empty/blank transaction for some people, which causes the following error:

Traceback (most recent call last):
  File "/home/local/counterpartyd_build/dist/counterpartyd/counterpartyd.py", line 504, in <module>
    blocks.follow()
  File "/home/local/counterpartyd_build/dist/counterpartyd/lib/blocks.py", line 402, in follow
    source, destination, btc_amount, fee, data = get_tx_info(tx)
  File "/home/local/counterpartyd_build/dist/counterpartyd/lib/blocks.py", line 307, in get_tx_info
    for vout in tx['vout']:
TypeError: 'NoneType' object is not subscriptable

In my case, I tried rerunning bitcoind with --txindex=1 --reindex=1 to no avail. Same issue (although I'm not ruling out user error on my end :).

This happens due to bitcoind's JSON RPC getrawtransaction returning:

{'result': None, 'id': 0, 'error': {'message': 'No information available about transaction', 'code': -5}}

Two recommended things:

• Do better error checking from bitcoind api responses (especially where there is an 'error' attribute or "'result': None" in the data output)
• Figure out why bitcoind is returning this in some cases, and address

[robby-d]

btc4ever's hack at https://bitcointalk.org/index.php?topic=395761.msg4281925#msg4281925 seemed to fix for me, but I'm not sure if it's the best approach.

[robby-d]

Nevermind, I had counterpartyd accessing a different bitcoind instance on my machine that was not using txindex=1 ...modified it to use one that did.

Enhancing counterpartyd to provide this feedback (e.g. "do you have txindex=1 in your bitcoind.conf file??") on reception of this error would be helpful I think.

[adamkrellenstein]

Nevermind, I had counterpartyd accessing a different bitcoind instance on
my machine that was not using txindex=1 ...modified it to use one that
did.

Enhancing counterpartyd to provide this feedback (e.g. "do you have
txindex=1 in your bitcoind.conf file??") on reception of this error would
be helpful I think.

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#4 (comment)

Done. Good call.