Use Serial Monitor on Platformio not show tty.usbmodem

I am new to use platformio IDE on develop arduino. I was use Arduino UNO. On initialize, i have add this platform-arduino uno. But i dont see port tty.usbmodem1411. What should i do ? There is output if i cek with pio serialports

`$ pio serialports list
/dev/cu.Bluetooth-Incoming-Port

Hardware ID: n/a
Description: n/a

/dev/cu.NunungsiPad-WirelessiAP


Hardware ID: n/a
Description: n/a

/dev/cu.usbmodem1411

Hardware ID: USB VID:PID=2341:0043 SER=95233353131351C08162 LOCATION=20-1
Description: Generic CDC`

Could you run pio serialports in PlatformIO IDE Terminal? Thanks.

Yes, output for that command like this :

ThinkMac:~ ThinkMac$ pio serialports list
/dev/cu.Bluetooth-Incoming-Port
-------------------------------
Hardware ID: n/a
Description: n/a

/dev/cu.NunungsiPad-WirelessiAP
-------------------------------
Hardware ID: n/a
Description: n/a


/dev/cu.usbmodem1421
--------------------
Hardware ID: USB VID:PID=2341:0043 SER=95233353131351C08162 LOCATION=20-2
Description: Generic CDC

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