NuGet Warning NU5118

File 'F :\validation\test\proj\tools\readme.1.txt' is not added because the package already contains file 'tools\readme.txt'

Issue

A file added as Content in the project file could not be added to the package being generated because another with the same PackagePath was already added to the package.

Solution

Please ensure that any Content files being added to the package using the project file have unique PackagePath metadata.