Can't Run Duplicated and Renamed Mod (Mod Originally made in 2025.1)

Started by Plerpy on

Topic category: Help with Minecraft modding (Java Edition)

Joined Dec 2025
Points:

User statistics:

  • Modifications:
  • Forum topics:
  • Wiki pages:
  • MCreator plugins:
  • Comments:
Can't Run Duplicated and Renamed Mod (Mod Originally made in 2025.1)

I duplicated my workspace, ran it and it was fine. When I renamed it I couldn't run it and it came up with this:

 

'Main mod file compilation errors

One or more of your main mod files did not compile properly

This is usually caused by inconsistencies in the mod code during builds. MCreator may be able to solve this for you by regenerating the entire mod's code.

If you have locked mod elements or mod base files, they can cause this error too.

Click regenerate code button to proceed with this action.'

 

I clicked that and then it came up with the exact same thing, is there any way to fix this? (I don't know how to unlock/lock mod elements)

If locked mod elements is the reason, could it be from using the wood pack tool?

Joined Jul 2023
Points:

User statistics:

  • Modifications:
  • Forum topics:
  • Wiki pages:
  • MCreator plugins:
  • Comments:
If you didn’t lock anything…
Sat, 03/07/2026 - 13:58

If you didn’t lock anything yourself, there should be nothing locked. I’m guessing the problem is the specific way you modified mod files or just renamed the something or outside of MCreator. My recommended way to go about this is to. If you want to make a duplicate workspace with another name I’d recommend following these steps:

  1. Find your r=original workspace folder (Should be <user account folder>/MCreatorWorkspaces/<your workspace>
  2. Duplicate and rename that folder
  3. Open MCreator, then click the Import Workspace from .mcreator file button, and go to the new workspaces folder and click <old workspace name>.ncreator
  4. Wait for the workspace to load
  5. Open workspace preferences and change the Mod Name and Mod ID
  6. When it asks to refactor, say yes

After that, you should have a working differently named workspace copy.

Joined Dec 2025
Points:

User statistics:

  • Modifications:
  • Forum topics:
  • Wiki pages:
  • MCreator plugins:
  • Comments:
It came up with the exact…
Sat, 03/07/2026 - 22:54

It came up with the exact same notification:

'Main mod file compilation errors

One or more of your main mod files did not compile properly

This is usually caused by inconsistencies in the mod code during builds. MCreator may be able to solve this for you by regenerating the entire mod's code.

If you have locked mod elements or mod base files, they can cause this error too.

Click regenerate code button to proceed with this action.'

Joined Dec 2025
Points:

User statistics:

  • Modifications:
  • Forum topics:
  • Wiki pages:
  • MCreator plugins:
  • Comments:
I made the mod from MCreator…
Tue, 03/10/2026 - 05:49

I made the mod from MCreator, I didn't convert anything, just worded it poorly. Sorry for the confusion.

Joined Dec 2025
Points:

User statistics:

  • Modifications:
  • Forum topics:
  • Wiki pages:
  • MCreator plugins:
  • Comments:
I don't know if this was…
Sat, 03/14/2026 - 10:54

I don't know if this was obvious before, but the problem is changing the Mod ID/Namespace from 'hopping_mouse_mod' to 'the_outback'

Hope this helps.