Hello World “Conversion to Dalvik format failed”

I've installed the following development environment on my 10.6.5:

Eclipse SDK 3.6.1
Android SDK Tools r8
Android SDK Platform-tools r1
Android SDK 2.2
Android SDT 8.0.1

Then when I create the Hello World I get the error:

Conversion to Dalvik format failed with error 1

I have tried everything, since this error has appeared in the past for many reasons, but I still have the same problem.

Thanks in advance

Solution

I'm going to close this issue because I found a solution: Netbeans!!

I lost many hours trying to compile the Android Hello World example with Eclipse. I decided to try Netbeans and it just worked.

I'm close to finish my project now and I can assure you that Netbeans is perfect to develop for Android platform. Hope it helps to anyone who is unhappy with Eclipse and Android. I have used Eclipse to develop with C++/Linux, PHP....no hard issues like this one.