Better error message for bad elem_size field.
Better error message for bad elem_size field.

psuriana/Halide,dan-tull/Halide,ayanazmat/Halide,myrtleTree33/Halide,rodrigob/Halide,kgnk/Halide,fengzhyuan/Halide,aam/Halide,dougkwan/Halide,kenkuang1213/Halide,damienfir/Halide,ayanazmat/Halide,dougkwan/Halide,dougkwan/Halide,delcypher/Halide,rodrigob/Halide,fengzhyuan/Halide,fengzhyuan/Halide,smxlong/Halide,ronen/Halide,rodrigob/Halide,adasworks/Halide,delcypher/Halide,mcanthony/Halide,smxlong/Halide,psuriana/Halide,jiawen/Halide,smxlong/Halide,tdenniston/Halide,fengzhyuan/Halide,ronen/Halide,mcanthony/Halide,kenkuang1213/Halide,mikeseven/Halide,lglucin/Halide,rodrigob/Halide,lglucin/Halide,aam/Halide,lglucin/Halide,ayanazmat/Halide,delcypher/Halide,dan-tull/Halide,adasworks/Halide,damienfir/Halide,kgnk/Halide,tdenniston/Halide,mcanthony/Halide,ayanazmat/Halide,dan-tull/Halide,dan-tull/Halide,mikeseven/Halide,aam/Halide,gchauras/Halide,kenkuang1213/Halide,delcypher/Halide,fengzhyuan/Halide,mikeseven/Halide,kgnk/Halide,ayanazmat/Halide,mikeseven/Halide,dan-tull/Halide,mcanthony/Halide,kenkuang1213/Halide,damienfir/Halide,rodrigob/Halide,myrtleTree33/Halide,jiawen/Halide,aam/Halide,dougkwan/Halide,ronen/Halide,kenkuang1213/Halide,aam/Halide,delcypher/Halide,kgnk/Halide,psuriana/Halide,mcanthony/Halide,jiawen/Halide,myrtleTree33/Halide,lglucin/Halide,damienfir/Halide,tdenniston/Halide,rodrigob/Halide,myrtleTree33/Halide,ayanazmat/Halide,fengzhyuan/Halide,dan-tull/Halide,jiawen/Halide,ayanazmat/Halide,kgnk/Halide,mcanthony/Halide,tdenniston/Halide,damienfir/Halide,kgnk/Halide,ronen/Halide,adasworks/Halide,mikeseven/Halide,gchauras/Halide,fengzhyuan/Halide,dan-tull/Halide,jiawen/Halide,kgnk/Halide,ronen/Halide,psuriana/Halide,kenkuang1213/Halide,psuriana/Halide,lglucin/Halide,ayanazmat/Halide,kenkuang1213/Halide,myrtleTree33/Halide,jiawen/Halide,myrtleTree33/Halide,kenkuang1213/Halide,myrtleTree33/Halide,ronen/Halide,adasworks/Halide,jiawen/Halide,smxlong/Halide,aam/Halide,dougkwan/Halide,smxlong/Halide,dougkwan/Halide,ronen/Halide,rodrigob/Halide,myrtleTree33/Halide,rodrigob/Halide,tdenniston/Halide,gchauras/Halide,adasworks/Halide,gchauras/Halide,tdenniston/Halide,delcypher/Halide,damienfir/Halide,gchauras/Halide,mcanthony/Halide,mcanthony/Halide,dougkwan/Halide,adasworks/Halide,dougkwan/Halide,adasworks/Halide,smxlong/Halide,kgnk/Halide,smxlong/Halide,delcypher/Halide,smxlong/Halide,gchauras/Halide,damienfir/Halide,aam/Halide,psuriana/Halide,ronen/Halide,fengzhyuan/Halide,delcypher/Halide,adasworks/Halide,tdenniston/Halide,dan-tull/Halide,damienfir/Halide,lglucin/Halide,tdenniston/Halide,psuriana/Halide,lglucin/Halide