Bug occurs while building the application.
The bug is located in ...\Files.Uwp.Package\Package.appxmanifest
(As image shows:)

To Reproduce
Steps to reproduce the behavior:
Desktop (please complete the following information):
Had the same problem with the master branch. A temporary solution for me was to exclude the "assets" folder from the "Files.Package" project.
The problem does not occur on the "v0.7-changes"-branch.
Most helpful comment
Had the same problem with the master branch. A temporary solution for me was to exclude the "assets" folder from the "Files.Package" project.
The problem does not occur on the "v0.7-changes"-branch.