How to reproduce:
1. Create a new project
2. Use one of the platforms (iOS, tvOS)
3. Go to player settings
4. Delete text from one of the fields: Bundle Identifier, Build, Version
5. Build project

Actual result: Build fails with an error, but message that build succeeded is printed to the console
Expected result: Build fails with an error and message that build failed is printed to the console

Reproducible: 2018.3.0a4, 2018.2.0b9, 2018.1.7f1
Not marking as regression because on 2017.4.6f1 those fields were not required and build always succeeded

Tested platforms and reproduced: iOS, tvOS
Tested platforms and didn't reproduced: Standalone, Android<- build doesn't fail when Build number is missing