Multisig signrawtransaction fails

Multisig signrawtransaction fails

I have 3 private keys (a,b,c) which belong to an address (2 of 3) from which I want to spend funds using RPC commands.

I´ve started with generating the redeemScript using createmultisig() and the pub keys which I have generated from the 3 priv Keys (using bitwasp). As the result returns the correct address this step seems to be correct.

After importing the address to my node and rescanning the blockchain I execute listunspend() to get the unspend outputs for my rawtransaction.

Now I generate the raw tx using

createrawtransaction({txid,vout,scriptPubKey,redeemScript},{address:amount})

Here the result:

020000000195b96fa7fff141564feba34cb669bdeb94953c98ae864465623def3fbe9e9fb10100000000ffffffff01e87a01000000000017a9145766fcbfc6927c0b027e4b4245fffcb1ec16f64b8700000000

Now I start with signing this raw transaction

signrawtransaction(rawtx,{txid,vout,scriptPubKey,redeemScript},privKey1)

The result of this signing process is used for the second step

signrawtransaction(signedrawtx,{txid,vout,scriptPubKey,redeemScript},privKey2)

The first signing step returns "Operation not valid with the current stack size" which, as far as I know is correct if a multisig address is involved and not enough keys have signed the tx.

The second step returns "Signature must be zero for failed CHECK(MULTI)SIG operation" which I don´t understand. What's going wrong here? Even if I change the used priv keys and use the second or third key for the first signing step and one other for the second the error still persits. Am I missing a thing?

https://ift.tt/2MHXVpR