When I try to validate (blue Validate-button in the inZOI Data Editor) the file “Action_Interaction” (or any other of the Action_Interaction-Sources) I get the “Fatal Error” Error Message, without any further details.
It seems like it does not matter which Mod it is or what was changed in the file. For example the sample mod “Sample_DataMod” crashes without any additional change.
I don’t know if that is a general ModKit problem, or if there is something wrong with my installation..
Hello!
I recently started using ModKit after the 0.9.3 update and I do not have a fatal error, so it seems to be a problem specifically with your ModKit. Here are some things you can try that may help you:
1. Match Your Engine and ModKit Versions
The base game updated recently to 0.9.3, so your locally installed ModKit build might be completely out of date.
- Look up the official inZOI Forums ModKit Section or the Epic Games Store to verify that your ModKit Version matches the current Live Game build exactly.
- Validation loops will throw strict fatal exceptions if the underlying Unreal Engine asset references or class derivations have drifted.
2. Clear Your Editor Cache Data
Corrupted transient data inside your local AppData folder can trick the Data Editor into throwing non-descript validation errors.
- Close the inZOI ModKit completely.
- Press
Windows Key + E and navigate to your local workspace directory: C:\Users\[YourUsername]\AppData\Local\inZOIModKit (or BlueClient. Your directory might be a bit different, but it should be similar).
- Locate the Saved, Intermediate, and DerivedDataCache folders.
- Wipe these folders entirely. They contain temporary validation cache files that automatically regenerate cleanly the next time you boot up the program.
If clearing the cache fails, the developers may need to push an emergency ModKit hotfix to repair the master Action_Interaction source tables.
I am sure there are also people that are much more knowledgeable about the ModKit than I am. So I hope more people will see it
Edit: If you need help with 1., I can try to explain how to verify the files. Because even if it seem “up to date”, there can still be a mismatch
Hi!
Thanks for the tips, unfortunately nothing worked so far : /
I verified the installation (with the “Check Files”-Button in the manage-options of the ModKit in the Epic Games Store), removed the AppData-Folders, and even reinstalled the whole ModKit..
This is my current version:
Also when I try to validate for example Action_Interaction_Food, this error appears (and I have no idea what that means):
(But at least it does not close the modkit and it seems that the validation runs through.)
But I just don’t know what’s going on with my modkit.. 
At least it seems that these errors do not cause any problems when creating a local mod package or upload them to CurseForge, so fortunately that does not hinder me updating my mods.
The “localized text is empty or missing” message is an environment-side bug apparently caused by the recent game update ( I read it online, since I downloaded ModKit after the update and personally do not have that issue)
The game update moved or changed some master text directories (String Tables) inside the project files. When you click the blue “Validate” button, the ModKit looks for default localization strings that don’t exist in the current ModKit build. For food files, it just throws a warning; but for the main interaction file, it triggers a critical reference error that crashes the editor compiler.
Because this is strictly a preview/validation UI bug, your core mod files are not corrupted. When you export your mod package to a folder or upload it to CurseForge, the live inZOI game client fills in the missing text pieces using its own internal files.
- Skip Local Validation: Completely avoid using the blue “Validate” button for
Action_Interaction assets until developers push a ModKit string-table patch. (There might be modders that have more knowledge than me, but this seems to call for a developer patch)
- Test In-Game: Instead of relying on the validator, use the “Create Local Mod Package” feature and load your mod into your live game folder (
Documents/inZOI/Mods) to verify that your custom animations or actions function correctly.
If your mod project still works, then you can “ignore” that pop up for now. And just so I understand you right… The fatal error is now gone?
The Fatal Error (and sometimes a totally blank error) is still there when validating the Action_Interaction file.
I always like to use the Validate Button to check if something is missing or wrong, but yeah, for now I just have to check/validate everything myself and test it in ingame. It‘s a inconvenience but nothing that hinders my mod development completely. So I can live with it 
Thanks for the help and information!
I get it… It just feels “wrong” without that validation step
. But this really seems do be something the devs need to fix or someone who knows the ModKit much better than me.
Happy modding and I hope everything works out for you
I’ve moved the issue to the “technical help” section that’s more appropriate. 
