Arduino Uno via Eclipse on Mac OSX won't work

Hey guys,

I'm quite new on Mac OS and unfortunately on Arduino as well, so I hope anyone could help me out.
I'm working on an Macbook and try to upload sketches in Eclipse to my Arduino Uno R3.

I installed Eclipse(Luna) following these instructions: Arduino Eclipse IDE named Sloeber - Welcome!

While trying to upload any sketches I get this Error:

AVRDude does not support the project target MCU [ATmega328P]

Please select a different target MCU if you want to use AVRDude.
(Properties -> Target Hardware)

The preferences -> Arduino -> Target Hardware shows ATmega 328P as presetted MCU-type.
Bellow this warning:

This MCU is not supported by AVRDude

If needed i can upload Screenshots.
Hope you can help up;)

Greeting from Cologne
Due

I tried to reinstall and work on Eclipse Kepler, but still the same problem. :~

There is problem with avr plugin for eclipse and the last version of avrdude. Try, if it is possible, to use old version of avrdude (like this which is in the official IDE).

Merci 68tjs.

I've checked that out.
Actually that didn't fix it.
Anyway i solved the problem on another way.

This Article said, that there is a new plugin-version included in a whole Eclipse package:

I just downloaded the V2.2 package as written and the newest Arduino IDE Beta.

Now it works...guess I was blind.

Greetings

Due