"Previous output scriptPubKey mismatch" error

[monsterer]

Hi guys,

I'm using the rawtransactions system in bitcoind to form a transaction which has inputs from two different multi-sig addresses.

For each input to sign, I include the scriptpubkey from the relevant source transaction output.

This has always worked fine when dealing with a single input, but now there are multiple inputs from different addresess, I'm getting this error:

Code:

Previous output scriptPubKey mismatch:

OP_HASH160 0eb6e197413636e2f31864fe68c3f82bf2fc973e OP_EQUAL
vs:
OP_HASH160 3a29964f71121f14aecf0959945d3cf2693e9f65 OP_EQUAL

Any ideas what I'm doing wrong?

Cheers, Paul.

[monsterer]

Ok, figured it out.

The error message confused me. Looking at the source code I see the meaning of this message is actually:

"The given script pub key for transaction input does not match the one on record".

I thought the message was telling me that all inputs must have the same scriptpubkey, which would have been horrible.

Cheers, Paul.