I have a test target project A, and a tester project B.
Project A has FlurryAgent.jar in it
http://code.google.com/p/android/issues/detail?id=27608
I submitted the issue to Google and they uploaded a temporary fix. The fix will also be included in v18 release.
"project member x...@android.com, Today (34 minutes ago) get the anttasks.jar from the bottom of http://tools.android.com/download to replace the one in your sdk."
The file to replace is at \Android\android-sdk\tools\lib\