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Arduino code compile error

Q&A Forum › Category: Arduino › Arduino code compile error
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Charles Merkel asked 4 weeks ago

https://imgur.com/a/9cJj2al
https://pastebin.com/F0vaXr0q
I have run into a problem making a change in one of my ESP32 servers that I built from your server course some time ago. I need your help in fixing this issue. This issue occurred as I was trying to compile the code to create a new .bin fie. Keep in mind that this code has been working fine for a couple of years. I had to make a change in the I/P address and when I went to create the new .bin file I got this error. I am not sure if it is telling me that I need to add some code or is there a file missing? I have never seen the term <cmath>
Regards,
Charles

6 Answers
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Sara Santos Staff answered 4 weeks ago

Hi.
Do you use cmath in any of the files you have for  your project?
Which board are you selecting when compiling the code?
Regards,
Sara

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Charles Merkel answered 4 weeks ago

Sara, This is the first time I  heard of cmath. I have to say that if I do use it, I sure do not know about it. The board I have selected is the “nodemcu-32s”. That board name is specified in all the .bin files that I created previously.
Regards
Charles

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Sara Santos Staff answered 4 weeks ago

Hi again.
I believe that’s something broken with your Arduino IDE or ESP32 boards installation,
 
On your computer, go to this directory: C:/Users/merke/AppData/Local/Arduino15/packages/esp32/
Delete the esp32 folder under the packages folder.
 
Then, install the ESP32 boards again: https://randomnerdtutorials.com/installing-esp32-arduino-ide-2-0/
 
Regards,
Sara

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Sara Santos Staff answered 4 weeks ago

Let me know if that fixes the issue.
Regards,
Sara

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Charles Merkel answered 3 weeks ago

Sara, The problem turned out to be with one of the library files that is in the #include section of the sketch. I found one that would not update automatically and I had to go to the library and delete it and then install the latest version. One problem solved and I am working on another one. When I formulate an intelligent question, I will post it here. we can mark this one solved.
Regards,
Charles
 

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Sara Santos Staff answered 3 weeks ago

Ok. Grat.
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara