Fixed travis build error
Fixed travis build error

mayapp/fuzzy-guacamole,sivawang/LineBotTemplate,meng-tint-chien/hkteam,junp1013/linebot,kristofferson83/chat-rule-not-by-me,lan666as/LineBotTemplate,asimcs/asimcs-test-linebot,Yikaros/LineBotTemplate,kkdai/LineBotBabyLuis,kkdai/LineBotTemplate,filghk/line,didacat/linebot