"error[LI005]no definition for ..."in IAR and Keil IDE s to stm32f031c6t8

[amoos.11]

hi every one

i have some problems by STEVAL-PTOOL1V1 evaluation board.mentioned evaluation board is based on stm32f031c6t8 mcu and used for brushless DC motor control fields.the ST microcontrollers has been provided a sample project by stmcubemx to run BLDCs.i used the sample code in IAR and keil IDEs and faced by some problems.problems are following:

1-error [LI005]:no definition for "MC_Core_Start".......

1-error [LI005]:no definition for "MC_Core_Reset".....

1-error [LI005]:no definition for "MC_Core_Stop".......

it would be appreciated if help me to resolve those errors?

thanks

[Tesla DeLorean]

Linker error, so missing a source file or library in the build.

Grep the source

[amoos.11]

but I downloaded whole files that provided by ST company.