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What is "Game_Event.list"? ( I get an error cannot find 'list' of undefined )

BMM Archive · July 15, 2026

Preserved forum archive. This topic stores the original first post and locally mirrored RPG Maker Web attachments when available. It is posted by the BMMPlay archive account, not by the original creator.

Original Source

  • Original title: What is "Game_Event.list"? ( I get an error cannot find 'list' of undefined )
  • Original author: astracat111
  • Original date: April 29, 2016
  • Source thread: https://forums.rpgmakerweb.com/threads/what-is-game_event-list-i-get-an-error-cannot-find-list-of-undefined.61121/
  • Source forum path: Game Development Engines > RPG Maker Javascript Plugins > Learning Javascript

Summary

Hello there,  I've been getting an error: Cannot read property 'list' of undefined SOMETIMES inexplicably when I'm clicking on events and they are supposed to activate. It would happen Does anyone know what Game_Event.list does or is? EDIT: Even if I define Game_Event.list with some value, it's still happening. I've attached a screenshot of what the console says. 

Archived First Post

Hello there, 


I've been getting an error: Cannot read property 'list' of undefined SOMETIMES inexplicably when I'm clicking on events and they are supposed to activate. It would happen <5% of the time, so I put on a temporary fix that seems to be stopping it, just put "Game_Event.list = 0" when a scene starts so that it's defined, as in the console when I would check it's value it was indeed undefined.


Does anyone know what Game_Event.list does or is?


EDIT: Even if I define Game_Event.list with some value, it's still happening. I've attached a screenshot of what the console says. 


The scripts I'm using: 


Skip Title Screen


Bind Pictures to Map


TDDP_Preload Manager


Web Audio Cache


YEP_CoreEngine


A Custom Input Settings Plugin


YEP_MessageCore


And then what's probably causing it: A custom run and walk script with a custom mouse cursor, and an edit to the rpg maker default script of how events are run in where you can click on tall characters to activate them instead of just 1 tile big characters. 


I'm going to do more testing tomorrow to try to squash the bug, but any help again is greatly appreciated.


EDIT2: What I'm generally understanding is that somehow "Game_Event" is undefined, perhaps it's even for a split second? If I could just do a simple "if Game_Event != undefined { } else { }" statement I feel like that would squash the bug...or at least patch it up.


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cannot read property of list undefined error screenshot.png
cannot read property of list undefined error screenshot.png
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