When you upgrade Windows 10 to version 1703 build 15063.13, you can also update Visual Studio to 2017 version 15.1 and install Windows SDK 10.0.15063. However, the latest updates are not enough, and you must apply a hotfix to maintain the ability to create application packages that are uploaded to the Windows Dev Center.
A successful build ends with an error message during application packaging:
File '<drive letter>:\<project path>\<project name>_<application version>_scale-100.appx' not found.
The patch hasn’t been released yet. Luckily, Daniel Jacobson has created a hotfix that can be easily applied – storagepackageworkaround.zip (see ReadMe.txt).