"Accessed None trying to read property: ...

Development Programming & Scripting Blueprint
1

Hello,

I’ve seen this problem floating around and kind of understand what it means, and some people have found with putting down an “isValid” blueprint to fix this. My problem is if that’s what I need I don’t know where it would go. I am getting two of these errors coming from my GameInstance class:

Thanks in advance

2

Looks like the error is on your Player Controller. Check IsValid for that.

I don’t 100% understand the reason for this but I think it’s because GI is persistent while PC is spawned per level. Usually you always expect there to be a player controller in slot 0 but there could be situations where this is not the case.

3

Okay, that makes sense. Where would I put it and how would I hook it up though? Because isValid returns a boolean, so where would I hook that up to? Would I go from the “Get Player Controller” node or the “Create BPW Menu Main Widget”?

Thanks :slight_smile:

4

Who is calling AddWidget? When you are calling AddWidget, the player still doesn’t exist, and therefore the error. Adding a IsValid node would solve this problem, but since this function is only called once, it won’t add the widget at the end. So I recomend, calling it, after the player is created, so why not making the player calling it.