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Looking for file that never existed

 LogLinker:Warning: Can't find file '/Game/TopDownBP/TopDownOverview'
 LogUObjectGlobals:Warning: Failed to find object 'Class /Game/TopDownBP/TopDownOverview.TopDownOverview_C'

I keep seeing these warning messages everywhere: on loading, when packaging, when trying to inspect the packages. In particular, the lines above were copy pasted from a brand new project with no template. My only guess is that it may be referenced in some editor preference, but I've searched through those and found nothing.

Product Version: UE 4.13
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asked Nov 07 '16 at 05:19 PM in Bug Reports

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NullBlack
110 8 9 12

avatar image Matthew J ♦♦ STAFF Nov 07 '16 at 06:03 PM

Hello NullBlack,

Could you provide the full log from a session where you've attempted to package and gotten this message? Also, do you have any plugins or marketplace content installed via the Epic Games Launcher that could be trying to reference this file?

Also, you may be able to find references by creating a map asset that matches the name and path or importing the content for the TopDown template into a project and using the Reference Viewer.

avatar image NullBlack Nov 07 '16 at 07:42 PM

TopDownOverview appears to be an EditorTutorial (based on subsequent warning when I originally derived from Actor). Reference viewer did not reveal anything.

Adding it removed the warnings from packaging; the warnings remained when using PkgInfo.

packaging log from before faked TopDownOverview

PkgInfo from after fake

avatar image Matthew J ♦♦ STAFF Nov 07 '16 at 09:14 PM

From looking at the logs, this could be related:

LogDerivedDataCache:Display: Loaded Boot cache: C:/Users/Seth/AppData/Local/UnrealEngine/4.13/DerivedDataCache/Boot.ddc

As the DDC is something that is generated based off of content and involves loading said content, it could be what is causing this. Can you try deleting that DerivedDataCache folder? If you aren't able to see AppData, you'll need to enable hidden folders in Control Panel > Folder Options > View.

avatar image NullBlack Nov 07 '16 at 10:05 PM

deleting it didn't do anything; still looks for the nonexistent asset.

avatar image Matthew J ♦♦ STAFF Nov 08 '16 at 06:14 PM

This obviously wouldn't help existing projects if this was the case, but have you tried creating a new project since deleting the DDC?

avatar image Matthew J ♦♦ STAFF Dec 08 '16 at 04:27 PM

Hello NullBlack,

Would it be possible for you to upload a copy of this project so that I could take a look at this issue to see if I can find the root issue?

avatar image NullBlack Dec 08 '16 at 04:44 PM

The TopDownOverview in the project is the fake one added per comments on Nov 07.

[1]: /storage/temp/117882-empty.rar

empty.rar (1.6 MB)
avatar image Matthew J ♦♦ STAFF Dec 08 '16 at 05:41 PM

Thank you for that. I downloaded the project and packaged just to ensure that I didn't see the warning anywhere. After confirming that, I deleted the TopDownOverview.uasset asset and then packaged, expecting to see the warning but I'm not seeing it anywhere. Could you try this same thing and see if you still see the error? This could point towards it being your engine installation in some way.

Also, when you go to delete the asset, please pay attention to the window that appears and check to see if it says if there are any asset or memory references.

avatar image NullBlack Dec 08 '16 at 06:04 PM

still seeing the warning. And there were no references of either kind, when deleted.

avatar image Matthew J ♦♦ STAFF Dec 14 '16 at 08:16 PM

I apologize for the delay NullBlack, I'm still looking into the issue, just not prioritizing it since it is only a warning and not blocking your progress. Could you try running the following console command after you have received this warning?

 obj refs name=TopDownOverview

This should put a message in the output log, could you provide me with that output?

avatar image NullBlack Dec 19 '16 at 04:15 PM
 Cmd: obj refs name=TopDownOverview
 LogObj: Couldn't find object.
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2 answers: sort voted first

Unfortunately, as we cannot reproduce this locally since it seems specific to your editor installation, we will not be able to proceed in investigating this issue. As it is just a warning and doesn't impact the packaging of your project, I hope this this won't be an issue.

Have a nice day!

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answered Mar 23 '17 at 02:58 PM

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Matthew J ♦♦ STAFF
31.8k 526 91 417

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We haven't heard from you in a while, NullBlack. Are you still experiencing this issue? If so, have you tried what I mentioned in my previous comment? In the meantime, I'll be marking this issue as resolved for tracking purposes.

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answered Nov 18 '16 at 08:16 PM

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Matthew J ♦♦ STAFF
31.8k 526 91 417

avatar image NullBlack Nov 18 '16 at 08:48 PM

I have just tried: it did not work; the new project is still looking for those assets

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