Nios II Building Error

I got this error when building a Nios II project. Please help me fix it. :)

alt_sys_init.c:(.text+0x8): warning: Error: Interrupt not connected for JTAG_UART. You have selected the interrupt driven version of the ALTERA Avalon JTAG UART driver, but the interrupt is not connected for this device. You can select a polled mode driver by checking the 'small driver' option in the HAL configuration window, or by using the -DALTERA_AVALON_JTAG_UART_SMALL preprocessor flag.
alt_sys_init.c:(.text+0x8): undefined reference to `__alt_invalid'
collect2: ld returned 1 exit status
make: ***  Error 1