I tried starting bitcoind in regtest mode but got the following error.

Command : bitcoind -regtest -daemon

Output :

Bitcoin server starting

Error: Invalid amount for -paytxfee=: '0.00' (must be at least 0.00001000 BTC/kB)

  • What are the contents of bitcoin.conf (if any)?
    – user11221
    May 26, 2015 at 13:19
  • @George Thanks. I changed paytxfee=0.00001000 in bitcoin.conf file and now it works.
    – somesh
    May 26, 2015 at 14:09

1 Answer 1


Since paytxfee is not passed as an argument you need to alter the value of paytxfee in your bitcoin.conf.

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