ubuntu16.04安装rosgenericnewer distributions (Groovy, Hydro, …) must not be listed anymore, they are being fetched from the rosdistro index.yaml instead
参考链接https://blog.csdn.net/Kalenee/article/details/80614606?ops_request_misc=%257B%2522request%255Fid%2522%253A%2522158798426119725256700931%2522%252C%2522scm%2522%253A%252220140713.130102334.pc%255Fal...
