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Currently, when I try to debug my app locally using teamsfx preview --local, I cannot get the app to start. The app in question is the hello world example taken from the documentation so I don't believe this is related to how the app itself is structured.

To be more specific, after running the command I get the status bars loading on my console, but after everything goes to 100%, it stays that way, without giving me any more feedback:

$ teamsfx preview --local
████████████████████  100% | [1/1] Node.js (√) Done.  
████████████████████  100% | [2/2] M365 Account (√) Done.  
████████████████████  100% | [2/2] Development certificate for localhost (√) Done.  
████████████████████  100% | [2/2] Ngrok (√) Done.  
████████████████████  100% | [1/1] Ports (√) Done.  
████████████████████  100% | [1/1] bot npm install (√) Done.  
ngrok start: The log of this task can be found in: C:\Users\<my_user>\.fx\cli-log\local-preview\2022-04-18T14_44_37_066Z\ngrok-start.log 
████████████████████  100% | [1/1] ngrok start (√) Done.  
████████████████████  100% | [1/1] bot npm install (√) Done.  
████████████████████  100% | [3/3] Provisioning Azure AD app (√) Done.  
████████████████████  100% | [1/1] Local debugging (√) Done.

I have my proxy configured in Windows settings and have set the proxy and http-proxy variables on my .npmrc file. Is there someplace else I need to specify my proxy address? Or is the problem something I'm missing entirely?

Bernardo Mesko
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1 Answers1

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Probably because the ngrok behind proxy is not successfully started. Do you find something in the ngrok log file?

C:\Users<my_user>.fx\cli-log\local-preview\2022-04-18T14_44_37_066Z\ngrok-start.log

How to solve this problem:

  1. Solve the ngrok issue and then run teamsfx preview --local again.
  2. Or you can use your own tunneling service instead of ngrok. See here for the configuration.
Kuojian Lu
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  • Hi Kuoijan, thanks for the answer! I've since managed to get this working on very specific conditions and I'm trying to make my way back to see if I can get things running on the usual network configs. Pretty nice to know that I can use my own tunneling service instead of ngrok, that's gonna be really helpful for me down the line. – Bernardo Mesko Apr 20 '22 at 12:47