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MZ RPG Maker MV Tools Database Converter: Cannot read property 'split' of undefined

BMM Archive · July 15, 2026

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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: MZ RPG Maker MV Tools Database Converter: Cannot read property 'split' of undefined
  • Original author: Sarena
  • Original date: December 29, 2023
  • Source thread: https://forums.rpgmakerweb.com/threads/rpg-maker-mv-tools-database-converter-cannot-read-property-split-of-undefined.164249/
  • Source forum path: Game Development Engines > RPG Maker Javascript Plugins > Javascript/Plugin Support

Summary

I've been working on my Actor information in Google Sheets, and have been looking for a way to import that data into RPG Maker MZ. I came across the RPG Maker MV Tools - Database ConVerter MV on Steam and after reading the comments, found that it might be compatible with MZ as well. I was able to export the data out of RPG Maker MZ using the tool, uploaded it to Google Sheets, then imported it back in. The Database values change in the editor, but when I go...

Archived First Post

I've been working on my Actor information in Google Sheets, and have been looking for a way to import that data into RPG Maker MZ. I came across the RPG Maker MV Tools - Database ConVerter MV on Steam and after reading the comments, found that it might be compatible with MZ as well.

I was able to export the data out of RPG Maker MZ using the tool, uploaded it to Google Sheets, then imported it back in. The Database values change in the editor, but when I go to play the game after making the changes, I receive the console error "Cannot read property 'split' of undefined".

I'm wondering if this has to do with it not actually being compatible with MZ. Though I did try this on an MV project and got a different error as well. Otherwise, it's possible I'm missing a step.

Here are the steps I've done, for reference:
  1. Set the Project Folder, Export Folder, and Backup Folder specifically, then check Actors for the Database and set Export File Format to xlsx.
    index.php
  2. On the Convert tab, click Export.
  3. Upload the Database.xlsx to Google Drive.
  4. Make a change (such as a character's name in the Name column).
  5. Save the file as a .xlsx to the "Export Folder" location, in place of the Database.xlsx file (File > Download > Microsoft Excel).
  6. In the RPG Maker MV Tools - Database ConVerter MV software, on the Convert tab, click Import.
  7. Open the MZ project and check the Database (to view the change has been made successfully).
  8. Click play and view the above error.
And then here are my files:
  • RPG Maker MZ project file (after the conversion/with the error message)
  • Database.xlsx (the original version exported out of RPG Maker MZ)
  • Database.xlsx (the updated version with Actor 20's name changed and imported back in)
Can someone point me in the right direction on what I might be doing incorrectly?

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