Caused by: java.lang.ClassNotFoundException: io.github.palexdev.materialfx.font.MFXFontIcon

[tushartgupta]

On my Mac - I installed the latest release of SceneBuilder. Now in my JavaFx project in Intellij, i am using the materialfx library and have imports like

import io.github.palexdev.materialfx.font.MFXFontIcon
import io.github.palexdev.materialfx.controls.MFXButton

I searched for and added the materialfx library to SceneBuilder app . Attaching the screenshot. It works fine when i go to the "SceneBuilder" app within the Inteliij IDE. It shows all the controls including the MFXButton and MFXFontIcon. It doesn't work when i select the option "Open in SceneBuilder" by righ clickining the fxml file in Intellij. It fails with:

Caused by: java.lang.ClassNotFoundException: io.github.palexdev.materialfx.font.MFXFontIcon
at java.base/java.lang.ClassLoader.findClass(Unknown Source)
at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
at javafx.fxml@20.0.1/javafx.fxml.FXMLLoader.loadTypeForPackage(Unknown Source)
at javafx.fxml@20.0.1/javafx.fxml.FXMLLoader.loadType(Unknown Source)
... 66 more

Within Intellij, it opens the fxml in scenebuilder, but the only issue is that the left side pane is not showing the "Controller" tab for the document. It shows the hierarchy, but not the controller, when i can set the controller class

Expected Behavior

Current Behavior

Steps to Reproduce

Your Environment

Product Version
JavaFX Scene Builder 20.0.0

Build Information
Version 20.0.0
Date: 2023-05-08 14:08:04
JavaFX Version: 20.0.1
Java Version: 20, OpenJDK Runtime Environment

Logging
The default configuration stores logging output in a file named scenebuilder-20.0.0.log (possibly followed by a trailing '.' and a digit).
The default file path is /Users/tushgupt/.scenebuilder/logs/scenebuilder-20.0.0.log

JavaFX
20.0.1

Java
20.0.1, OpenJDK Runtime Environment

Java Library Path(s):
/
/Applications/SceneBuilder.app/Contents/app
/Library/Java/Extensions
/

Missing or invalid Java Library Path(s):
/Users/tushgupt/Library/Java/Extensions
/Network/Library/Java/Extensions
/System/Library/Java/Extensions
/usr/lib/java

Operating System
Mac OS X, x86_64, 13.5.1

Screenshots