CODEWITHSUNDEEP
clinkerlinker-errors
Tarik Mokafih
Tarik Mokafih

Reputation: 1257

C linker error : .\_build\ble_app_hids_keyboard.axf: Error: L6200E: Symbol UX_captureStarted multiply defined (by sens.o and main.o)

Hi I'm trying to compile my program but always get this linker error:

.\_build\ble_app_hids_keyboard.axf: Error: L6200E: Symbol UX_captureStarted multiply defined (by sens.o and main.o)
..\_build\ble_app_hids_keyboard.axf: Error: L6200E: Symbol UX_captureStarted multiply defined (by algorithm.o and main.o).

here is the structure of my code:

sens.h

extern int8_t UX_captureStarted = 0;

sens.c

int8_t UX_captureStarted = 0;

algorithm.h

#include "sens.h"
// some processing using UX_captureStarted

main.c

#include "algorithm.h"
//some processing using UX_captureStarted

I got the same linker error with several other variables declared with the same structur as UX_captureStarted. thank you for your help.

Upvotes: 1

Views: 3113

Answers (1)

Ariel Pinchover
Ariel Pinchover

Reputation: 654

It has multiple instances of those variables, causing linking problem. Check your compiling order, and try to make a one source for those. Also you might want to delete the defining line in sens.c.

Upvotes: 1

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