FAILURE: Build failed with an exception. (Caused by Missing class for Items from autogenerated codes)

I tried to add Item, then this error occured:

I tried to:

1. Delete cache folder in gradle folder from .mcreator folder, then it still happens
2. Delete gradle folder by entirely from .mcreator folder, then it still happens

3. Create a new project and I tried to new a sample project to diagnose this bug, and it still happens.

Is it a bug or technical problems? (And also add some exception in my Antivirus (Avast))

BUILD FAILED
Task completed in 7 seconds

> Task :compileJava FAILED
C:\Users\...\MCreatorWorkspaces\tutorialmodmcreator\src\main\java\net\mcreator\tutorialmodmcreator\TutorialmodmcreatorMod.java:50: error: package TutorialmodmcreatorModItems does not exist TutorialmodmcreatorModItems.REGISTRY.register(bus);
^
1 error
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':compileJava'.
> Compilation failed; see the compiler error output for details.
* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 2s
1 actionable task: 1 executed

BUILD FAILED
Task completed in 5 seconds