usbThereadError

Version 5.18a i get this error ;
usbThreadError , mcu is stm32f103vet . it is working with cubemx mdk version 5 , but there is error if i will create project by keil wizard. Stack size increased .
i set timing definitions correctly.Led is blinking correctly by rtx rtos.Same code was working with old version

int main(void){
        GPIO_PortClock (GPIOB,true);
        GPIO_PinConfigure(GPIOB, 5,GPIO_OUT_PUSH_PULL,GPIO_MODE_OUT50MHZ);
        GPIO_PinWrite (GPIOB,5,1);
        /*GPIO_PortClock (GPIOC,true);
        GPIO_PinConfigure(GPIOC,13,GPIO_OUT_PUSH_PULL,GPIO_MODE_OUT50MHZ);
        GPIO_PinWrite (GPIOC,13,0);*/
        osKernelInitialize();

        StatusM = USBD_Initialize(0);
        USBD_Connect (0);
        if(StatusM==usbOK)
        osKernelStart();