Error l6218e undefined symbol (referred from main.o)

Hi All, I am getting this error while compiling the main.c file for TI Stellaris LM4F120 using Keil. I know this error is basically when the header files cannot be found by the compiler correctly. Please...
Error l6218e undefined symbol (referred from main.o)

Hi All, I am getting this error while compiling the main.c file for TI Stellaris LM4F120 using Keil. I know this error is basically when the header files cannot be found by the compiler correctly. Please...
nRF51 Error: L6218E: Undefined symbol (referred from main.o)

Hello! I am having these errors when compiling and I have no idea on how to fix them: \nrf51422_xxac.axf: Error: L6218E: Undefined symbol custom_service_init (referred from main.o). \nrf51422_xxac...
Error: L6218E: Undefined symbol __rt_stackheap_init (referred from startup.o).

Hi everybody , When I write them below in startup.s of my project, the linker report error "Error: L6218E: Undefined symbol __rt_stackheap_init (referred from startup.o)." How should I do to include...
Error: L6218E: Undefined symbol nchecksum_of (referred from epa_protocol.o).

Hello, I have linking problem in my project. Nonetheless I defined correctly my include paths, linker is printing message L6218E: Undefined symbol nchecksum_of (referred from epa_protocol.o). In file...