ATtiny85 upload error

Hi :slight_smile:

I am having problems with uploading to ATtiny 85 with my Arduino Uno. Its the first time I am testing the attiny chip.

I had some issues getting the attiny boards enabled in the IDE but got it after moving the attiny folder to the hardware folder.

Downloaded the ArduinoISP sketch to uno and selected the ATtiny85 1Mhz board and selected
Arduino as ISP.

I am trying to downloading the Blink example sketch to test, changed ledPin output to 3 and this is the error I get:

avrdude: ser_open(): can't set buffers for "\.\COM1"

Any suggestions on what the problem can be?

The problem was usb drivers not installed. I tried to reinstall the IDE when troubleshooting on the ATtiny board problem.
Only problem I have now is Atmel Studio not showing any boards :o