Target is not Placeholder-Class

Development Programming & Scripting Blueprint
1

Hi, i need some help from you, guys!
I have an AI, where i use Get player Character -> Cast to PlayerBP -> Get (or Set) <VariableName> construction. I updated the project to 4.10.2 and a strange bug appeared. I have a TestMap level, which is editor startup map, and there is an instance of my AI on this level. When i delete this instance, save the level and restart UE, a lot of errors appear: nodes require Placeholder-Class Player instead of usual Player Class. And if i set another level as an editor startup map, errors disappear.

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I get the same errors in the log when i package my project for Windows. Does anyone know if i’ve done something wrong in my project or it is an Unreal Engine bug? I found similar issue on AnsweHub: [4.9.2] Widget Component Class resets - UI - Epic Developer Community Forums. Does my error associated with the same bug (UE-21098)?

2

im not sure, but did you try to connect target to Cast to player ?

3

CriErr, I can’t connect CastTo and SetTargetActor because incompatible type Player Ref and Placeholder-class Player Ref. If you mean connect target to CastTo without special nodes below SetTarget - same issue after restart UE.

4

Delete the bad node compile . Then drag out from the cast to player node as player and try to set it again .

5

I tried it a few times, but did not help

6

What exactly is the set node? From youre blueprints you are setting target in the enemy bp but then trying to set something fron youre player bp?

7

There is part of the AI blueprint on the screenshot. SetTarget is parent function for all AI blueprints, that is why it’s target is self. After the function runs, i need to assign null to the TargetActor in PlayerBP. So that is what Set does.

8

Can you post the targetActor variable from the player bp and also the details panel I think the problem is there.

9

Did you mean this panel?

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