android app problem on Macbook

I have developed an android application which is working fine on win7 PC. But when i copied this same app to macbook and then i got following errors.

[2011-07-11 17:49:38 - MyApplication] Installation error: INSTALL_FAILED_MEDIA_UNAVAILABLE
[2011-07-11 17:49:38 - MyApplication] Please check logcat output for more details.
[2011-07-11 17:49:39 - MyApplication] Launch canceled!

Emulator also doesn't work here.

I read开发者_如何学编程 posts which contains exactly same problems but these doesn't helped me.

this had happened to me before, the problem is with the Auto-generated R.java, apparently Eclipse for OS X changes some syntax around on that specific file..

my recommendation:

rebuild your package in osX eclipse so it auto-generates your R file.