Search Issue Tracker

Fixed in Unity 2018.2



Found in


Issue ID




[asmdef] Renaming Assembly Definitions breaks all references to it if there’s more than one Asmdef in the same folder




Priority: 3Not yet prioritized for a release


Severity: 3Secondary functionality broken

Steps to reproduce:
1. Open attached “” Unity project
2. Rename ‘A’ assembly definition file in 'New Folder 1' in Project window
3. Select ‘C’ assembly definition file in 'New Folder' in Project window

Expected results:
‘C’ asmdef retains reference of ‘A’ asmdef after renaming
Actual results:
‘C’ asmdef loses reference to ‘A’ asmdef after renaming and AssemblyDefinitionException error appears

Reproduced in: 2018.2.0a1, 2018.1.0b3, 2017.3.0p3, 2017.3.0b1

Error example:
AssemblyDefinitionException: Reference assembly definition file 'Assets/New Folder 1/A.asmdef' not found
UnityEditor.AssemblyDefinitionImporterInspector.LoadAssemblyDefintionState (System.String path) (at /Users/builduser/buildslave/unity/build/Editor/Mono/Inspector/AssemblyDefinitionImporterInspector.cs:424)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Fixed in: 2018.2.0a5

All about bugs

View bugs we have successfully reproduced, and vote for the bugs you want to see fixed most urgently.