fix build error
fix build error

frrp/bitshares,RemitaBit/Remitabit,frrp/bitshares,FollowMyVote/bitshares,dacsunlimited/dac_play,RemitaBit/Remitabit,dacsunlimited/dac_play,jakeporter/Bitshares,bitshares/bitshares-0.x,bitsuperlab/cpp-play,RemitaBit/Remitabit,camponez/bitshares,bitshares/devshares,jakeporter/Bitshares,jakeporter/Bitshares,bitshares/bitshares-0.x,dacsunlimited/dac_play,bitsuperlab/cpp-play,FollowMyVote/bitshares,bitsuperlab/cpp-play,bitshares/devshares,dacsunlimited/dac_play,FollowMyVote/bitshares,jakeporter/Bitshares,bitshares/bitshares-0.x,bitshares/bitshares-0.x,bitshares/devshares,bitshares/bitshares-0.x,frrp/bitshares,bitshares/bitshares-0.x,bitshares/devshares,bitshares/bitshares,jakeporter/Bitshares,camponez/bitshares,bitshares/devshares,FollowMyVote/bitshares,bitsuperlab/cpp-play,jakeporter/Bitshares,frrp/bitshares,dacsunlimited/dac_play,RemitaBit/Remitabit,bitshares/bitshares,dacsunlimited/dac_play,bitshares/devshares,camponez/bitshares,FollowMyVote/bitshares,camponez/bitshares,RemitaBit/Remitabit,frrp/bitshares,RemitaBit/Remitabit,camponez/bitshares,FollowMyVote/bitshares,bitsuperlab/cpp-play,bitsuperlab/cpp-play,bitshares/bitshares,bitshares/bitshares,frrp/bitshares,bitshares/bitshares,camponez/bitshares,bitshares/bitshares