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Cannot read property 'clamp' of null

BMM Archive · July 15, 2026

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Original Source

Original title: Cannot read property 'clamp' of null
Original author: Metrux
Original date: August 23, 2016
Source thread: https://forums.rpgmakerweb.com/threads/cannot-read-property-clamp-of-null.67267/
Source forum path: Game Development Engines > RPG Maker Javascript Plugins > Javascript/Plugin Support

Summary

Okay, I got a bug that I've never seen before, and after searching on google, discovered no one talked about it before. I am using several Yanfly plugins, although I already tested with most relevant plugin (as in it has anything to do with items or equipment) and it kept appearing. My issue comes with an equipment slot, when you equip something in it, first the values appear wrong. Then, when you try to change or use another equip slot, it crashes with the message "Cannot read property 'clamp' of...

Archived First Post

Okay, I got a bug that I've never seen before, and after searching on google, discovered no one talked about it before.

I am using several Yanfly plugins, although I already tested with most relevant plugin (as in it has anything to do with items or equipment) and it kept appearing.

My issue comes with an equipment slot, when you equip something in it, first the values appear wrong. Then, when you try to change or use another equip slot, it crashes with the message "Cannot read property 'clamp' of null".

Error Report:

TypeError: Cannot read property 'clamp' of null
at Game_Actor.Game_BattlerBase.refresh (rpg_objects.js:2603)
at Game_Actor.Game_BattlerBase.refresh (YEP_ExtraParamFormula.js:497)
at Game_Actor.Game_BattlerBase.refresh (YEP_EnhancedTP.js:2815)
at Game_Actor.Game_Battler.refresh (rpg_objects.js:2988)
at Game_Actor.Game_Battler.refresh (YEP_BaseParamControl.js:913)
at Game_Actor.Game_Battler.refresh (YEP_X_CounterControl.js:1453)
at Game_Actor.refresh (rpg_objects.js:3742)
at Game_Actor.refresh (YEP_EquipBattleSkills.js:565)
at Game_Actor.refresh (YEP_ClassChangeCore.js:547)
at Game_Actor.forceChangeEquip (rpg_objects.js:3626)rpg_managers.js:1618 SceneManager.catchExceptionrpg_managers.js:1579 SceneManager.update

Since I don't know how to make/put here a sample project, I'll be sending a mediafire link:

http://www.mediafire.com/download/130ykud9ldh4gl9/Guild_Hunter.rar

Does anyone have a clue about what the issue is?

The only still active and relevant plugins are:

YEP_CoreEngine

YEP_MainMenuManager

YEP_BaseParamControl

YEP_ItemCore

YEP_EquipCore

YEP_X_CounterControl

Downloads / Referenced Files

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#039 #rpg-maker-archive #js-support

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