unbutun TensorBoard logging requires TensorBoard with Python summary writer installed.

#from torch.utils.tensorboard import SummaryWriter

tensorflow已经安装了，顺带说一句安装tensorflow后好像自动会有自适应的匹配版本的tensorflow-tensorboard，好像不用管tensorboard了。。

但是他还是报错，所以改了一下：

from tensorboardX import SummaryWriter

就行了,没安装tensorboardx的安装一下，注意大小写：

pip install tensorboardx