How to reproduce:
1. Open any project (or create a new one)
2. Open Player settings
3. Add a space at the end of "Product Name" field (i.e. "product-name ")
4. Build for Universal Windows Platform

Expected result: Build completes with a result of 'Succeeded'.
Actual result: Build fails with 'DirectoryNotFoundException'. (check Console window)

Reproducible with: 2017.3.0a5, 2017.3.0a4, 2017.2.0b8, 2017.1.0p4, 5.6.1p3, 5.5.4p3

Note: Trying to rebuild the project produces a different error: "IOException: Failed to move [path] to [anotherPath] .: Cannot create a file when that file already exists."