Fix the No-Dowloading bug introduced in last commit; Fix some user messages
Fix the No-Dowloading bug introduced in last commit; Fix some user messages

liuycsd/bypy,jezhang/bypy,hxford/bypy,nucked/bypy,wwj718/bypy,eehello/bypy,krizex/bypy,oouyang/bypy,liuycsd/bypy,usr0418/bypy,houtianze/bypy,rchlin/bypy,houtianze/bypy,MaolinWang/bypy,YelaSeamless/bypy,menghan/bypy,liujianpc/bypy,zeropool/bypy,adrianzhang/bypy,WangKaimin/bypy,yusiwen/bypy,RobberPhex/bypy,rocky1001/bypy,alex1818/bypy,Zocalos/bypy