Created Actor class cpp files are missing when reloading project

Development Programming & Scripting
1

I’ve create a new ‘blank project’ with starter content in UE 5 preview 2.

I’ve Added a couple of Actor class cpp files and they appear in the content browsers, I can create Blueprints with them as base class and use the blueprint in the map.
The .CPP Actor classes are boilert plate autogenerated code. I’ve changed/added/removed nothing.

working just fine.

BUT, after I reload the project, I’m getting these error for the blueprint:

CreateExport: Failed to load Outer for resource 'DefaultSceneRoot_GEN_VARIABLE': BlueprintGeneratedClass /Game/StarterContent/BP_Something.BP_Something_C

CreateExport: Failed to load Outer for resource 'SimpleConstructionScript_0': BlueprintGeneratedClass /Game/StarterContent/BP_Something.BP_Something_C

CreateExport: Failed to load Outer for resource 'SCS_Node_0': SimpleConstructionScript /Game/StarterContent/BP_Something.BP_Something_C:SimpleConstructionScript_0

CreateExport: Failed to load Outer for resource 'SCS_Node_1': SimpleConstructionScript /Game/StarterContent/BP_Something.BP_Something_C:SimpleConstructionScript_0

CreateExport: Failed to load Outer for resource 'Pillar_50x500_GEN_VARIABLE': BlueprintGeneratedClass /Game/StarterContent/BP_Something.BP_Something_C

CreateExport: Failed to load Outer for resource 'DefaultSceneRoot': BP_Something_C /Game/StarterContent/Maps/Minimal_Default.Minimal_Default:PersistentLevel.BP_Something_C_1

CreateExport: Failed to load Outer for resource 'Pillar_50x500': BP_Something_C /Game/StarterContent/Maps/Minimal_Default.Minimal_Default:PersistentLevel.BP_Something_C_1

Taking a look in the BP the parent class is “None” (before reloading the project it was not None)

The .cpp files are not showen in the content browser and appear only after I click “Recompile and reload c++ code for game systems on the fly”

and even then, the BP is still missing the parent class and I cannot reassign the .cpp class as parent.

tried it on another empty UE5 preview 2 project - same issue.
Using windows 10, Visual studio community 19 (v 16.11.11),

in 4.24 and VS 17 I don’t have this issue and it works as expected!

2 Likes
2

I have the exact same issue and it’s so frustrating. Did you end up finding a solution?

Steps to reproduce using UE 5.1.1 & VS 2022 -

  • Create a new C++ project in UE
  • Add a new Actor class
  • Restart UE5
  • The previously created class is now missing, yet if you try to recreate it UE throws an error saying the file already exists…

Beyond annoying.

1 Like
3

Same here. C++ classes are missing from the content browser after a restart and compiling makes Unreal Editor crash.