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Arduino IDE – Error in command line, need pyserial path

Q&A Forum › Category: Arduino › Arduino IDE – Error in command line, need pyserial path
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yvonne asked 6 years ago

Hi Rui,

I can update my sketch to the NodeMCU.

This is what the IDE message is:

Error in command line, need pyserial path as 1th arg and esptool path as 2nd.

I have posted this problem in the Arduino forum and in the NodeMCU forum, but until now no solution. I’m working on a Linux pc.

I hope you recognize this error message and that you can give me some advice.

Thank you in advance.
Yvonne

3 Answers
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Rui Santos Staff answered 6 years ago

I’ve never encountered that error… What are you trying to do that triggers that error message?

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yvonne answered 6 years ago

This is the solution I found:

  • Delete the /home/myname/arduino-1.8.8/hardware/esp8266com folder
  • Delete all the files except for preferences.txt in ~/.arduino15
  • Delete ~/.arduino15/packages/esp8266
  • (In the Arduino IDE) Tools > Board > Boards Manager
  • Wait for downloads to finish.
  • Scroll down through the available packages until you see “esp8266 by ESP8266 Community”. Click on it.
  • Click “Install”.
  • Wait for installation to finish.
  • Click “Close”.
  • Select and ESP8266 board from the Tools > Board menu.
  • Compile a sketch to see if it’s working now.

Regards,
Yvonne

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Rui Santos Staff answered 6 years ago

Thank you for posting the solution Yvonne. If more people experience this error, I’ll either point them to your solution or create a dedicated troubleshooting guide for this subject. Regards,
Rui