Merge pull request #388 from Unity-Technologies/bugfix/1324399-fix-build-with-prefabs

Fixing errors popping in console when building scenes with prefabs

Author: lopezt-unity

CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Bug Fixes
 
+- [case: 1324399] Fixing errors when building with prefabs in scene.
 - [case: 1323666] Preventing to assign an empty mesh as MeshCollider.
 - [case: 1322032] Fixing wrong ProBuilderMesh colors on domain reload when null.
 - [case: 1322150] Fixing torus and sphere UV generation when creating New Shape.

Editor/EditorCore/UnityScenePostProcessor.cs

@@ -27,7 +27,7 @@ public static void OnPostprocessScene()
             // Hide nodraw faces if present.
             foreach (var pb in pbMeshes)
             {
-                if (pb.GetComponent<MeshRenderer>() == null)
+                if (pb.GetComponent<MeshRenderer>() == null || UnityEditor.EditorUtility.IsPersistent(pb))
                     continue;
 
                 if (pb.GetComponent<MeshRenderer>().sharedMaterials.Any(x => x != null && x.name.Contains("NoDraw")))
@@ -55,6 +55,9 @@ public static void OnPostprocessScene()
 
             foreach (var mesh in pbMeshes)
             {
+                if (UnityEditor.EditorUtility.IsPersistent(mesh))
+                    continue;
+
                 EditorUtility.SynchronizeWithMeshFilter(mesh);
 
                 if (mesh.mesh == null)
@@ -82,6 +85,7 @@ public static void OnPostprocessScene()
                     continue;
 
                 StripProBuilderScripts.DestroyProBuilderMeshAndDependencies(gameObject, mesh, true);
+
             }
         }