B4J Question error using jWebGL

[buckgeneral]

When I try to run max123's Billards8Ball project using B4J which requires jWebGL I get the error show below. After trying many fixes, I went back to basics and created a simple "hello World" project (Code Below). If I run the project with the basic library file B4XPages, jCore and Jfx it runs fine with no errors. When I check jWebGl I get the error shown brlow. I have jWebGl.jar and jWebGL xml intalled in the AdditionalLibraries folder. I have tried Java 19, 14 and 11. with the same result. What am I doing wrong??

Error Message:
B4J Version: 10.50
Parsing code. (0.22s)
Java Version: 19
Building folders structure. (0.33s)
Running custom action. (0.26s)
Compiling code. (0.21s)
Compiling layouts code. (0.00s)
Organizing libraries. (0.00s)
Compiling generated Java code. Error
B4J line: 79
MainPage.Initialize
src\b4j\example\b4xpagesmanager.java:107: error: method _initialize in class b4xmainpage cannot be applied to given types;
__ref._mainpage /*b4j.example.b4xmainpage*/ ._initialize(ba);
^
required: b4xmainpage,BA
found: BA
reason: actual and formal argument lists differ in length
1 error

B4XMainPage:

#Region Shared Files
#CustomBuildAction: folders ready, %WINDIR%\System32\Robocopy.exe,"..\..\Shared Files" "..\Files"
'Ctrl + click to sync files: ide://run?file=%WINDIR%\System32\Robocopy.exe&args=..\..\Shared+Files&args=..\Files&FilesSync=True
#End Region

#Macro: Title, Export B4XPages, ide://run?File=%B4X%\Zipper.jar&Args=%PROJECT_NAME%.zip

Sub Class_Globals
Private Root As B4XView
Private xui As XUI
End Sub

Public Sub Initialize
' B4XPages.GetManager.LogEvents = True
End Sub

'This event will be called once, before the page becomes visible.
Private Sub B4XPage_Created (Root1 As B4XView)
Root = Root1
Root.LoadLayout("MainPage")
End Sub

'You can see the list of page related events in the B4XPagesManager object. The event name is B4XPage.

Private Sub Button1_Click
xui.MsgboxAsync("Hello world!", "B4X")
End Sub

 

[Erel]

Looks like the library was compiled with a B4XMainPage class. You can see it if you open the XML file with a text editor. This is problematic.

You might be able to solve this issue by removing this declaration from the XML file and deleting the class from the jar file (which is a zip). Better to ask the library author to remove it.