我正在开发一个用户界面streamlit并使用pyngrok来自科拉布。一切都工作正常，直到几天前开始出现隧道未找到错误。我正在使用下面的代码。我也升级了pyngrok并尝试过，但同样的问题仍然存在。对于整个 UI 构建和 Colab 来说相当新pyngrok似乎是最方便的学习方式。但现在这已经停止工作了，如果有人也可以建议任何其他方法或者我做错了什么，那就太好了
!pip install streamlit
!pip install pyngrok==4.1.1
import streamlit as st
from pyngrok import ngrok
# !ngrok authtoken (mykey)
# writefile app.py
def main():
# app body
pass
if __name__=='__main__':
main()
!streamlit run app.py &>/dev/null&
public_url = ngrok.connect(port='8501')
public_url
#the log is also attached below after running above code which runs without errors as can be seen
#output below
2021-01-30 09:30:44.197 INFO pyngrok.process: ngrok process starting: 1106
2021-01-30 09:30:44.218 INFO pyngrok.process: t=2021-01-30T09:30:44+0000 lvl=info msg="no configuration paths supplied"
2021-01-30 09:30:44.220 INFO pyngrok.process: t=2021-01-30T09:30:44+0000 lvl=info msg="using configuration at default config path" path=/root/.ngrok2/ngrok.yml
2021-01-30 09:30:44.224 INFO pyngrok.process: t=2021-01-30T09:30:44+0000 lvl=info msg="open config file" path=/root/.ngrok2/ngrok.yml err=nil
2021-01-30 09:30:44.227 INFO pyngrok.process: t=2021-01-30T09:30:44+0000 lvl=info msg="starting web service" obj=web addr=127.0.0.1:4040
2021-01-30 09:30:45.021 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg="tunnel session started" obj=tunnels.session
2021-01-30 09:30:45.026 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg="client session established" obj=csess id=a37f21d64392
2021-01-30 09:30:45.031 INFO pyngrok.process: ngrok process has started: http://127.0.0.1:4040
2021-01-30 09:30:45.044 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg=start pg=/api/tunnels id=39c5cfa99a0ab7d7
2021-01-30 09:30:45.051 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg=end pg=/api/tunnels id=39c5cfa99a0ab7d7 status=200 dur=386.416µs
2021-01-30 09:30:45.057 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg=start pg=/api/tunnels id=9e57507bfe0794a8
2021-01-30 09:30:45.059 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg=end pg=/api/tunnels id=9e57507bfe0794a8 status=200 dur=159.931µs
2021-01-30 09:30:45.063 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg=start pg=/api/tunnels id=121fc98244651186
2021-01-30 09:30:45.418 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg="started tunnel" obj=tunnels name="http-8501-b9a57eaf-a9ac-4dd9-be80-7b1a5e4af344 (http)" addr=http://localhost:8501 url=http://c25e18c565f2.ngrok.io
2021-01-30 09:30:45.422 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg="started tunnel" obj=tunnels name=http-8501-b9a57eaf-a9ac-4dd9-be80-7b1a5e4af344 addr=http://localhost:8501 url=https://c25e18c565f2.ngrok.io
2021-01-30 09:30:45.428 INFO pyngrok.process: t=2021-01-30T09:30:45+0000 lvl=info msg=end pg=/api/tunnels id=121fc98244651186 status=201 dur=374.833924ms
http://c25e18c565f2.ngrok.io
Error:
我是开发者pyngrok，我想联系您，让您知道，上周我在我们的问题跟踪器、Colab 问题跟踪器等上多次看到了有关此问题的报告。我伸出手来ngrok，因为这似乎就是问题所在，他们刚刚回复了我。他们证实，他们最近无意中开始阻止与 Colab 的连接，现在他们已经解决了这个问题。我刚刚自己也测试了一遍，果然，它已经修复了！
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