(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
I found this is already reported to ms connect
https://connect.microsoft.com/VisualStudio/feedback/details/991028/issue-using-resx-files-on-winrt-apps-windows-phone-and-windows
and there is a workaround I haven't tried yet.
http://blogs.msdn.com/b/philliphoff/archive/2014/11/19/missingmanifestresourceexception-when-using-portable-class-libraries-in-winrt.aspx
Unfortunatelly it has not been fixed so far.