I've seen this question asked about 100 times on StackOverflow, but this isn't a one answer that solves them all. Here is my build path:
![Java build path](https://i.stack.imgur.com/hCzQB.png)

However I still get:

```
[2014-05-03 11:44:33 - Dex Loader] Unable to execute dex: Multiple dex files define Lcom/squareup/okhttp/Address;
[2014-05-03 11:44:33 - Untappd] Conversion to Dalvik format failed: Unable to execute dex: Multiple dex files define Lcom/squareup/okhttp/Address;

```

What is the best and easiest way to solve this issue? I got it when i tried to manually add a new version of Aviary SDK to my project by deleting the old project and adding the new one. I've tried cleaning and rebuilding and it doesn't work.