Universal/added builtin res reload check

com.unity.render-pipelines.core/CHANGELOG.md

@@ -27,6 +27,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Fixed the issue with the special Turkish i, when looking for the m_IsGlobal property in VolumeEditor. (case 1276892)
 - Fixed texture gather macros for GLCore and moved them from target 4.6 to target 4.5.
 - Fixed cubemap array macros for GLCore.
+- Built-in resources will also throw invalid import if the ResourceReloader is unable to retrive the resource.
 
 ## [14.0.0] - 2021-11-17
 

com.unity.render-pipelines.core/Runtime/Utilities/ResourceReloader.cs

@@ -190,19 +190,34 @@ static UnityEngine.Object Load(string path, Type type, bool builtin)
 
             // Else the path is good. Attempt loading resource if AssetDatabase available.
             UnityEngine.Object result;
-            if (builtin && type == typeof(Shader))
-            {
-                result = Shader.Find(path);
-            }
-            else
+            try
             {
-                result = AssetDatabase.LoadAssetAtPath(path, type);
+                if (builtin && type == typeof(Shader))
+                {
+                    result = Shader.Find(path);
+                }
+                else
+                {
+                    result = AssetDatabase.LoadAssetAtPath(path, type);
 
-                if (IsNull(result))
-                    result = Resources.GetBuiltinResource(type, path);
+                    if (IsNull(result))
+                        result = Resources.GetBuiltinResource(type, path);
 
-                if (IsNull(result))
-                    result = AssetDatabase.GetBuiltinExtraResource(type, path);
+                    if (IsNull(result))
+                        result = AssetDatabase.GetBuiltinExtraResource(type, path);
+                }
+            }
+            catch (Exception e)
+            {
+                //guid is not null as checked before unless this is builtin
+                if (!builtin)
+                {
+                    var ex = new Exception($"Cannot load. Path {path} is correct but AssetDatabase cannot load now.");
+                    ex.Data["InvalidImport"] = 1;
+                    throw ex;
+                }
+                else
+                    throw e;
             }
 
             if (IsNull(result))