LinuxMint - Arduino 1.8.12

Just downloaded latest version on 32 bit laptop for Linux Mint.

Downloads ok and gives a desktop link and this opens ok.

Cannot connect with the Nano or Uno I connect.

Tried this in terminal: ls -l /dev/ttyACM*
(as per https://www.arduino.cc/en/Guide/Linux)

I get message: $ ls -l /dev/ttyACM*
ls: cannot access /dev/ttyACM*: No such file or directory

I have the IDE and extracted files in a Documents folder ArduinoIDE1.8.12

How do I get the port # to work ?
Thankyou
Charles Harris

Get this message when I try to load the 'blink' sketch --

Arduino: 1.8.12 (Linux), Board: "Arduino Nano, ATmega328P"

Sketch uses 924 bytes (3%) of program storage space. Maximum is 30720 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00

Select Tools > Processor > ATmega328P (Old Bootloader) and then try uploading again.

Hi Pert

Right on. Worked immediately. Very pleased now I am away experimenting

Thanks

Charles

You're welcome. I'm glad to hear it's working now. Enjoy!
Per