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Fixed in Unity 2018.1



Found in


Issue ID




Tilemap Editor throws NullReferenceException when adding a reference to an Assembly Definition




Priority: 2Necessary for shipping a final release


Severity: 4Minor or cosmetic issue

How to reproduce:
1. Open Unity
2. Load tester-submitted project
3. Find "A3" Assembly definition in "A3" folder
4. If a reference to "A1" exists, delete it and apply changes
5. Clear Console of any errors
6. Add a reference "A1" to "A3" assembly definition and apply changes

Expected result: A new reference is added without any errors thrown.
Actual result: A new reference is added and Console throws a NullReferenceException.

Reproducible with - 2017.3.0b11, 2017.3.0f3
Not reproducible with - 5.6.5f1, 2017.1.2p4, 2017.2.1p1, 2017.3.0b10, 2018.1.0b1

Fixed and verified in 2017.3.0p2

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