There are a few .resx files in my game that I use for localization. They were working fine with the old WP7 project and the WP8 project. However when I imported them into the UWP project, errors took place. Below is the error info:
Build action ‘EmbeddedResource’ is not supported by projects with an output type of ‘appcontainerexe’.
Can someone tell me what the problem is? Thanks in advance! 
Seems it is because that Windows Store app doesn’t support the “Embedded Resource” build action. If that is the case, how can I implement localization function in my UWP app?
Found the solution:
https://msdn.microsoft.com/en-us/windows/uwp/globalizing/put-ui-strings-into-resources
In UWP you should change the .resx files into .resw files. The loading part is a bit messy though. It took me a while to reconnect all the UI strings…