Travis CI build failed

![screenshot from 2017-10-29 17-40-26](https://user-images.githubusercontent.com/6769313/32142344-84446696-bcd0-11e7-8cf7-06dc65f92e5a.png)

![screenshot from 2017-10-29 17-43-19](https://user-images.githubusercontent.com/6769313/32142350-b3813682-bcd0-11e7-9410-3c4a9e63016c.png)

Hello! 
After setup the clone repo in Travis CI, it was failing to build, please check the log and code above.