undefined reference on converted cpp file from c ,after addition of edge impulse package

[Abin_19]

I am working on a project to include edge impulse package into my code. But while integrating edge impulse package I got to change the c file to cpp. But the Ble package which was working fine prior is now not work fine as the code converted to cpp.

the files in bluenrg_ms file is not detected for the definition of functions to source code in main().

[Andrew Neil]

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@Abin_19 wrote:

 I got to change the c file to cpp. But the Ble package which was working fine prior is now not work fine as the code converted to cpp.

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Could this be due to C++ name mangling?

BTW: it's better to post the messages as text rather than a screenshot - copy & paste from the 'Console' tab ...

also, there's generally more detail in the 'Console' output.