Error when converting struts jar into bundle with Bnd

I did face errors when converting struts jar into bundles using bnd tool.

The problem was the name of the package:

...i18n.calendar.nls.pt-br;resolution:=opti...

The package pt-br contains a - sign. According to the Java spec, this is not a package name. The OSGi specification does therefore not allow you to export a package that includes a - sign.

Once i removed these packages from the manifest file , it worked fine .