Build & Launch works with gradle[w] but no standalone application (Windows)


I successfully build the latest version of GanttProject with instructions from here
The launch works with gradle or gradlew but the standalone app crash.
What am I doing wrong ?

> .\gradlew.bat distbin => build ok
> .\gradlew.bat runApp => run ok (with english menus)

> cd ganttproject-builder\dist-bin
Exception in thread "main" java.lang.NullPointerException
        at com.bardsoftware.eclipsito.Launch.getVersionLayerStoreDirs(
        at com.bardsoftware.eclipsito.Launch.main(

From here (Reduce code building time) I try gradle :ganttproject:run

> gradle :ganttproject:run  => run ok, in french and without settings dialog (as expected)

Version :

\ganttproject> git status
On branch master
Your branch is up to date with 'origin/master'.

\ganttproject> gradlew.bat -v

Gradle 5.4.1

Build time:   2019-04-26 08:14:42 UTC
Revision:     261d171646b36a6a28d5a19a69676cd098a4c19d

Kotlin:       1.3.21
Groovy:       2.5.4
Ant:          Apache Ant(TM) version 1.9.13 compiled on July 10 2018
JVM:          11.0.6 (Oracle Corporation 11.0.6+8-LTS)
OS:           Windows 10 10.0 amd64

ganttproject> java -version
java version "11.0.6" 2020-01-14 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.6+8-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.6+8-LTS, mixed mode)