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Launch Error: Assertion failed: RecursionNotAllowed

Hi everybody,

I am new to unreal so please bear with me.

I am trying to launch a level that I created and am getting a "RecursionNotAllowed" error. I have had a look into the blueprints and am unable to find any kind of loop that I thought the recursion might be referring to. An image of the error message is below.

alt text

Attached you can also find the Output Log that is created when the error occurs.

Any help would be greatly appreciated!

Product Version: UE 4.15
error1.png (6.9 kB)
errorlog.txt (21.1 kB)
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asked Mar 26 '17 at 07:42 PM in Packaging & Deployment

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2 answers: sort voted first

Hey erbmur,

I think you're running into a crash that I logged earlier today, as it has the same error message:


This seemed to be related to using gameplay tags.

Let me know if you have further questions.

Have a great day

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answered Mar 27 '17 at 02:32 PM

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Sean L ♦♦ STAFF
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avatar image erbmur Mar 27 '17 at 03:16 PM

Wow, I never would have even though about checking GameplayTags for the cause of the error. But it makes sense. Having a blank level with a simple ground plane works fine, but as soon as I add an actor that has a GameplayTag Container, I get the error.

Does this mean I should go through everything and remove the GameplayTags and find another way to get the game to work? Or should I continue as is and hope for a bugfix?

PS. I upvoted your bug report. :)

avatar image Sean L ♦♦ STAFF Mar 27 '17 at 03:52 PM

I haven't been able to determine a workaround at this time, so you can feel free to play around with removing things to see if you're able to determine one; otherwise, unfortunately, you'll have to hold out for the fix.


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I had this happen to me and I looked in some other answer thread, the solution for me turned out to me the same as theirs - right click on your Content folder inside your project and select Fix Up Redirectors in Folder. Hopefully it'll do a bunch of fixes, and the error will stop appearing.

Edit: Also, turn off Event Driven Loader Enabled if you have it on.

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answered Jun 20 '17 at 05:35 AM

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avatar image Spidermined Jan 02 '19 at 02:31 AM

This did not resolve the issue for me, but it did clean some stuff up. Also, when I disabled Event Driven Loader, a new error occurred:

LogPlayLevel ... LogAndroid: Error: Package ../../../Engine/Content/EngineResources/WhiteSquareTexture.uasset contains preload dependency data but the current build does not support it. Make sure Event Driven Loader is enabled and rebuild the game executable.

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