ImportError:无法从“tensorboard.summary”导入名称“scalar”

Question

我在ubuntu（64位）操作系统的终端上运行以下命令来启动tensorboard：

tensorboard --logdir /local/omar/runs/events.out.tfevents.1571428693.omar-VirtualBox --host localhost

但结果是以下错误：

tfevents.1571428693.omar-VirtualBox --host localhost
Traceback (most recent call last):
  File "/home/omar/anaconda3/bin/tensorboard", line 6, in <module>
    from tensorboard.main import run_main
  File "/home/omar/anaconda3/lib/python3.7/site-packages/tensorboard/__init__.py", line 4, in <module>
    from .writer import FileWriter, SummaryWriter
  File "/home/omar/anaconda3/lib/python3.7/site-packages/tensorboard/writer.py", line 28, in <module>
    from .summary import scalar, histogram, image, audio, text
ImportError: cannot import name 'scalar' from 'tensorboard.summary' (/home/omar/anaconda3/lib/python3.7/site-packages/tensorboard/summary/__init__.py)

我已经安装了标量库和张力板库，你能给我什么建议吗

谢谢你的帮助