avrdude: usbdev_open (): did not find any USB device" usb

Development Tools IDE 1.x
1

I am using Arduino Duelmilanove and when I upload there is an error message "avrdude: usbdev_open (): did not find any USB device" usb ". How do I fix this.

2

I'm having the very same problem with my arduino uno on a arch - linux box. Did you find something out so far?

as soon as i try to upload a sketch i get:
libusb couldn't open USB device /dev/bus/usb/001/001: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/001/003: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/002/001: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/002/002: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/003/001: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/004/001: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/004/002: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/005/001: Permission denied.
libusb requires write access to USB device nodes.
libusb couldn't open USB device /dev/bus/usb/005/002: Permission denied.
libusb requires write access to USB device nodes.
avrdude: usbdev_open(): did not find any USB device "usb"

when i'm doing this as root i only get the folloing error:
avrdude: usbdev_open(): did not find any USB device "usb"

i've following packages installed:
avr-binutils 2.22-2
avr-gcc 4.6.2-1
avr-libc 1.8.0-1
avrdude 5.11.1-1
libusb 1.0.8-2
libusb-compat 0.1.3-2

arduino ide is directly compiled from git

thanks