The path of .package(path: "../Project1Library") from within package "Project1App" doesn't resolve correctly.
Real path: G:\RootDirectory\My Projects\Project1\Project1Library
Build path: G:\RootDirectory\My Projects\Project1\Project1App\Project1Library
error: the package at 'G:\RootDirectory\My Projects\Project1\Project1App\Project1Library' cannot be accessed (Error Domain=NSCocoaErrorDomain Code=260 "The file doesnΓÇÖt exist.")
I've attached a functioning example. Open RootDirectory in VSCode. A defualt build configuration is included for windows, mac, and linux.
I tested the example on Windows and macOS, with no issues on macOS and the error on Windows.