"Error in continuous_scale" and "error in inherits" ggplot2 & R 2.14.2

HuntsBot,a one-stop outsourcing task, remote job, product ideas sharing and subscription platform, which supports DingTalk, Lark, WeCom, Email and Telegram robot subscription. The platform will push outsourcing task requirements, remote work opportunities, product ideas to every subscribed user with timely, stable and reliable.