hh

I have this errors,if you can help me,please.
Error: L6218E: Undefined symbol os_clock_interrupt (referred from rtx_config.o).
Error: L6218E: Undefined symbol os_mut_init (referred from rtx_config.o).
Error: L6218E: Undefined symbol os_mut_release (referred from rtx_config.o).
Error: L6218E: Undefined symbol os_mut_wait (referred from rtx_config.o).
Error: L6218E: Undefined symbol os_tsk_self (referred from rtx_config.o).

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