"multiple definitions of xxxx" error in .c file

[StevenW807]

I created .c file, and add a few TWI functions to it. However, when I run the code in segger, all functions in the .c file shows a "multiple definitions of xxxx" error (see below image)

Thanks

[Vidar Berg]

Hello,

It looks like you have defined the same functions in your main.c file? You need to remove these to get rid of the linker errors.

Best regards,

Vidar

[StevenW807]

Hi Vidar, I have checked that the only place where I defined these functions is the <twi_lcd_sdp31.c> file. I didn't define the same function in my <main.c> file. All functions in <twi_lcd_sdp31.c> file has the "multiple definitions error". 

Just for test, I also created a new function in <twi_lcd_sdp31.c> with a random name: 

void testdsaseadasnd()
{

}

The Segger still gives the "multiple definitions error" to this random name function. 

I have also tried: clean solution, rebuild the solution. However, it doesn't help. 

Any other ideas, please? Thanks! 

[Vidar Berg]

Hi, are you able to share you project so I can try building it here?