USB Permission denied, Linux MINT

Hi guys, I just bought the Sparkfun AVR pocket programmer. I am getting this error when trying to upload.

Linux Mint 19.1 Cinnamon

Arduino: 1.8.9 (Linux), Board: "Arduino/Genuino Uno"

Sketch uses 13930 bytes (43%) of program storage space. Maximum is 32256 bytes.
Global variables use 516 bytes (25%) of dynamic memory, leaving 1532 bytes for local variables. Maximum is 2048 bytes.
avrdude: Warning: cannot open USB device: Permission denied
avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)
avrdude: Error: Could not find USBtiny device (0x1781/0xc9f)

This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.

I created a file in " /etc/udev/rules.d/" and pasted this.

SUBSYSTEM=="usb", ATTR{product}=="USBtiny", ATTR{idProduct}=="0c9f", ATTRS{idVendor}=="1781", MODE="0660", GROUP="dialout"

after that I ran these commands...
sudo service udev restart
sudo udevadm control --reload-rules

but it still does not work. Thanks in advance!

99-USBtiny.rules

SUBSYSTEM=="usb", ATTRS{idVendor}=="1781", ATTRS{idProduct}=="0c9f", GROUP="dialout"