Need suggestion in 'Undefined reference' error during compilation

1

Hello everyone,

I’m facing an error while trying to compile my project in PlatformIO, and I’m hoping someone here might have encountered a similar issue and can offer some guidance.

Error Name: ‘Undefined reference’ error during compilation
Description: I’m getting the ‘undefined reference’ error when I try to compile my code using PlatformIO. I’ve double-checked my code and library dependencies, but I can’t seem to figure out what’s causing this issue. It’s preventing me from progressing with my project, and I’m not sure where to start troubleshooting.

Thanks in advance!"

2

Please show the detailed error log.
Without this, it is difficult to make a statement.

In the meantime, here are some generic C++ examples and solutions to this error: https://www.softwaretestinghelp.com/cpp-errors/

3 
src/main.cpp: In function 'int main()':
src/main.cpp:10:15: error: 'undefined_function' was not declared in this scope
     undefined_function();
     ^~~~~~~~~~~~~~~~~
src/main.cpp:20:10: error: 'undefined_variable' was not declared in this scope
     int x = undefined_variable;
          ^
Compilation failed

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4

Can you also share the source code?