Run Tensorboard in Google Colab

tensorboard_in_colab.py

# You can change the directory name
LOG_DIR = 'tb_logs'

!wget https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip
!unzip ngrok-stable-linux-amd64.zip

import os
if not os.path.exists(LOG_DIR):
  os.makedirs(LOG_DIR)
  
get_ipython().system_raw(
    'tensorboard --logdir {} --host 0.0.0.0 --port 6006 &'
    .format(LOG_DIR))

get_ipython().system_raw('./ngrok http 6006 &')

!curl -s http://localhost:4040/api/tunnels | python3 -c \
    "import sys, json; print(json.load(sys.stdin)['tunnels'][0]['public_url'])"

I use your way,but when I turn to the page of tensorboard,I met the problem"No dashboards are active for the current data set.",How can I do?