Multiple definition after update CubeIDE

[DBrau.2]

Hi. Can you say me what mean that type of error.

The code is surely correct because I've been working on it. The errors showed up after updating CubeIDE to a new version and generating files from .ioc file in IDE.

c:\st\stm32cubeide_1.7.0\stm32cubeide\plugins\com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.10.3-2021.10.win32_1.0.0.202111181127\tools\arm-none-eabi\bin\ld.exe: ./Core/Src/communication/sms.o:C:/master_g474ve/Debug/../Core/Inc/config.h:54: multiple definition of `config'; ./Core/Src/battery_charger.o:C:/master_g474ve/Debug/../Core/Inc/config.h:54: first defined here

[TDK]

Is config.h a CubeMX generated file? Certainly neither sms.c nor battery_charger.c is.

Probably you have the "config" variable/function defined in config.h, which is being included in two compilation units, which leads to duplicate definitions.

Move your definitions into source files and keep only the declaration in the header.

> The code is surely correct because I've been working on it.

Not sure that logic tracks.

[TDK · Accepted solution]

Probably this:

https://community.st.com/s/question/0D53W00001Pv3zASAR/multiple-definition-error-after-stm32cubeide-190-update

[DBrau.2]

Yes. It's answer to my question

[gsaishivareddy]

Please go through https://gcc.gnu.org/gcc-10/porting_to.html

In STM32CubeIDE, Goto Project Properties-> --> C/C++ Build -->Settings--> MCU GCC Compiler--> Miscellaneous--> other flags --> Add -fcommon    Apply and Close.

Hope this will help.