message: Include core_io.h from core_read.cpp
diff: // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  +#include <core_io.h>
  +
  #include <primitives/block.h>
  #include <primitives/transaction.h>
  #include <script/script.h>
  