(There\'s a link at the bottom to a solution with repro of the problem.)
I\'ve been using a portable library with .resx resources for quite some time as it worked for bo
In the end, it seems you can't use PCL library with localized resources using .resx files in the WP part of a Universal app. At least it's not trivial.
There were runtime problems when the app is build in Realese configuration, which I couldn't resolve, so I decided to change to .resw resources. This solved my problems, of course, but I had to duplicate the resources, which is what I was trying to avoid.