No dashboards are active for the current data set.
1. 如何打开tensorboard
命令行输入tensorboard --logdir=path如tensorboard --logdir=tflearn_logs；
回车出现TensorBoard 1.14.0 at http://Rick:6006/ (Press CTRL+C to quit)；
点进去链接就可以了；
如果拒绝访问，断网再点进去。
2.tensorboard界面出现错误No dashboards are active for the current data set.
参考链接：https://www.cnblogs.com/ipersevere/p/10843115.html
3.tensorflow入门课程
B站北大曹健老师的视频，讲解十分清晰。
https://www.bilibili.com/video/BV1GE411k7Q2
https://www.bilibili.com/video/BV1B7411L7Qt