Using Sharpen and eclipse: Error "Application" sharpen.core.application "could not be found in the registry."

Background

I'm currently making a guideline for converting java code to C # We have fast-growing Java software and we won’t be able to port some low-level (non-ui) apis with the tool, because saving all changes between versions can be really tedious ... Anyway, I'm trying to use Sharpen, since I heard that it is a rather evil tool used by some monofamies to keep some versions of their tools in check.

What I've done

• For this purpose I tried several guides that I found on the Internet, the easiest way to understand is http://www.pauldb.me/post/14916717048/a-guide-to-sharpen-a-great-tool-for-converting-java
• Since the link that he gives for the pre-build sharpen plugin is now broken, I create my own version of the plugin using the sources and instructions found here: https://github.com/xamarin/XobotOS/

Result

The plugin is built perfectly and installed in my eclipse folder. But when I try to run the ant script after setting everything up, I get an error message:

java.lang.RuntimeException: application "sharpen.core.application" could not be found in the registry.

Conclusion

Well. I'm lost here. I have no idea what that means.

• I am using windows 7 64bit
• I am using Eclipse 3.7
• java 6 sdk 64

- ... .

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