'DataNucleus Enhancer' Error 206

Question

I have a problem. I always get an Error 206 from Java DataNucleus Enhancer, since 2 days ago... days before, it worked without errors.

Cannot run program "D:\Program Files\Java\jre6\bin\javaw.exe" (in directory "C:\Users\schmisa2\workspace\AMS0"): CreateProcess error=206, The filename or extension is too long Cannot run program "D:\Program Files\Java\jre6\bin\javaw.exe" (in directory "C:\Users\schmisa2\workspace\AMS0"): CreateProcess error=206, The filename or extension is too long

I searched a lot at Google and Stackoverflow but could not solve the problem.

My longest path is:

C:\Users\schmisa2\workspace\AMS0\src\ch\zhaw\ams\module\football\sfv\news\server\NewsElement.java

https://groups.google.com/group/google-appengine-java/browse_thread/thread/6cde7d1695b3eff3

Does somebody know how I can fix it?

I installed a Linux Ubuntu to test it there. There it was no problem... but it doesn't work on Windows 7. I have GWT 2.4, App engine 1.6.5. SDK and Eclipse 3.7

Or can someone explain me how to run it on command line?

Answer 1

This worked for me.

"If you're using eclipse plugin go to Project | Properties, choose Google \ App Engine \ ORM and only include directories that you have classes that you want enhanced. By default it does the entire project so that includes a lot of needless files."

Source here